diff --git a/checkstyle.xml b/checkstyle.xml
new file mode 100644
index 0000000..941c004
--- /dev/null
+++ b/checkstyle.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+          "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+          "https://checkstyle.org/dtds/configuration_1_3.dtd">
+
+<module name="Checker">
+    <module name="LineLength">
+        <property name="max" value="100"/>
+    </module>
+</module>
diff --git a/pom.xml b/pom.xml
index 6969825..5c2efaf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -41,9 +41,8 @@
                             <goal>check</goal>
                         </goals>
                         <configuration>
-                            <suppressionsLocation>
-                                suppressions.xml
-                            </suppressionsLocation>
+                            <configLocation>checkstyle.xml</configLocation>
+                            <suppressionsLocation>suppressions.xml</suppressionsLocation>
                             <failOnViolation>true</failOnViolation>
                         </configuration>
                     </execution>
diff --git a/src/main/java/pw/kaboom/icontrolu/ControlPlayer.java b/src/main/java/pw/kaboom/icontrolu/ControlPlayer.java
index 4ed869d..3022ac2 100644
--- a/src/main/java/pw/kaboom/icontrolu/ControlPlayer.java
+++ b/src/main/java/pw/kaboom/icontrolu/ControlPlayer.java
@@ -35,7 +35,8 @@ class Tick extends BukkitRunnable {
             if (controller != null) {
                 for (int i = 0; i < controller.getInventory().getSize(); i++) {
                     if (controller.getInventory().getItem(i) != null) {
-                        if (!controller.getInventory().getItem(i).equals(target.getInventory().getItem(i))) {
+                        if (!controller.getInventory().getItem(i).equals(
+                                target.getInventory().getItem(i))) {
                             target.getInventory().setItem(i, controller.getInventory().getItem(i));
                         }
                     } else {
@@ -120,7 +121,8 @@ class ControlPlayer implements Listener {
             new BukkitRunnable() {
                 @Override
                 public void run() {
-                    target.chat("§iControlUChat§" + event.getMessage());  // Add prefix to prevent messages from being cancelled
+                    // Add prefix to prevent messages from being cancelled
+                    target.chat("§iControlUChat§" + event.getMessage());
                 }
             }.runTask(JavaPlugin.getPlugin(Main.class));
 
@@ -216,7 +218,8 @@ class ControlPlayer implements Listener {
                             allPlayers.showPlayer(JavaPlugin.getPlugin(Main.class), controller);
                         }
 
-                        final Scoreboard scoreboard = Bukkit.getScoreboardManager().getMainScoreboard();
+                        final Scoreboard scoreboard = Bukkit.getScoreboardManager()
+                            .getMainScoreboard();
                         final Team team = scoreboard.getTeam("icuCollision");
 
                         if (team != null
@@ -229,7 +232,8 @@ class ControlPlayer implements Listener {
                     }
                 }.runTaskLater(JavaPlugin.getPlugin(Main.class), tickDelay);
 
-                otherPlayer.sendMessage("The player you were controlling has disconnected. You are invisible for 10 seconds.");
+                otherPlayer.sendMessage("The player you were controlling has disconnected. "
+                                        + "You are invisible for 10 seconds.");
 
             } else if (PlayerList.getTarget(player.getUniqueId()) != null
                     && PlayerList.getTarget(player.getUniqueId()).equals(otherPlayer)) {
diff --git a/src/main/java/pw/kaboom/icontrolu/Main.java b/src/main/java/pw/kaboom/icontrolu/Main.java
index 6803eed..6a707e8 100644
--- a/src/main/java/pw/kaboom/icontrolu/Main.java
+++ b/src/main/java/pw/kaboom/icontrolu/Main.java
@@ -45,7 +45,8 @@ public final class Main extends JavaPlugin {
                 }
 
                 controller.removePotionEffect(PotionEffectType.INVISIBILITY);
-                controller.sendMessage("You are no longer controlling \"" + target.getName() + "\" due to server reload");
+                controller.sendMessage("You are no longer controlling \"" + target.getName()
+                                       + "\" due to server reload");
             }
         }
     }
diff --git a/src/main/java/pw/kaboom/icontrolu/commands/CommandIcu.java b/src/main/java/pw/kaboom/icontrolu/commands/CommandIcu.java
index a17adc5..3262f92 100644
--- a/src/main/java/pw/kaboom/icontrolu/commands/CommandIcu.java
+++ b/src/main/java/pw/kaboom/icontrolu/commands/CommandIcu.java
@@ -33,11 +33,14 @@ public final class CommandIcu implements CommandExecutor {
                 if (target == controller) {
                     controller.sendMessage("You are already controlling yourself");
                 } else if (PlayerList.getTarget(controller.getUniqueId()) != null) {
-                    controller.sendMessage("You are already controlling \"" + target.getName() + "\"");
+                    controller.sendMessage("You are already controlling \""
+                                           + target.getName() + "\"");
                 } else if (PlayerList.getController(target.getUniqueId()) != null) {
-                    controller.sendMessage("Player \"" + target.getName() + "\" is already being controlled");
+                    controller.sendMessage("Player \"" + target.getName()
+                                           + "\" is already being controlled");
                 } else if (PlayerList.getTarget(target.getUniqueId()) != null) {
-                    controller.sendMessage("Player \"" + target.getName() + "\" is already controlling another player");
+                    controller.sendMessage("Player \"" + target.getName()
+                                           + "\" is already controlling another player");
                 } else if (!controller.canSee(target)) {
                     controller.sendMessage("You may not control this player");
                 } else {
@@ -85,14 +88,16 @@ public final class CommandIcu implements CommandExecutor {
 
             final int seconds = tickDelay / 20;
 
-            controller.sendMessage("You are no longer controlling \"" + target.getName() + "\". You are invisible for " + seconds + " seconds.");
+            controller.sendMessage("You are no longer controlling \"" + target.getName()
+                                   + "\". You are invisible for " + seconds + " seconds.");
         } else {
             controller.sendMessage("You are not controlling anyone at the moment");
         }
     }
 
     @Override
-    public boolean onCommand(final CommandSender sender, final Command command, final String label, final String[] args) {
+    public boolean onCommand(final CommandSender sender, final Command command, final String label,
+                             final String[] args) {
         if (sender instanceof ConsoleCommandSender) {
             sender.sendMessage("Command has to be run by a player");
             return true;
diff --git a/suppressions.xml b/suppressions.xml
index 78fba39..8990963 100644
--- a/suppressions.xml
+++ b/suppressions.xml
@@ -1,10 +1,8 @@
 <?xml version="1.0"?>
-
 <!DOCTYPE suppressions PUBLIC
-    "-//Puppy Crawl//DTD Suppressions 1.0//EN"
-    "http://www.puppycrawl.com/dtds/suppressions_1_0.dtd">
+          "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+          "https://checkstyle.org/dtds/suppressions_1_2.dtd">
 
 <suppressions>
     <suppress checks="Javadoc" files="."/>
-    <suppress checks="LineLength" files="."/>
 </suppressions>