diff --git a/reactos/sdk/include/reactos/idl/eventlogrpc.acf b/reactos/sdk/include/reactos/idl/eventlogrpc.acf
index b9655c789fa..b96a2333374 100644
--- a/reactos/sdk/include/reactos/idl/eventlogrpc.acf
+++ b/reactos/sdk/include/reactos/idl/eventlogrpc.acf
@@ -1,5 +1,5 @@
 [
-	implicit_handle(handle_t bindhandle), strict_context_handle
+    implicit_handle(handle_t bindhandle), strict_context_handle
 ]
 interface eventlog
 {
diff --git a/reactos/sdk/include/reactos/idl/lsa.acf b/reactos/sdk/include/reactos/idl/lsa.acf
index 1360a7704be..804162e7b43 100644
--- a/reactos/sdk/include/reactos/idl/lsa.acf
+++ b/reactos/sdk/include/reactos/idl/lsa.acf
@@ -1,5 +1,5 @@
 [
-   explicit_handle
+    explicit_handle
 ]
 interface lsarpc
 {
diff --git a/reactos/sdk/include/reactos/idl/pnp.acf b/reactos/sdk/include/reactos/idl/pnp.acf
index 9ee6ac62747..4c9ecd81343 100644
--- a/reactos/sdk/include/reactos/idl/pnp.acf
+++ b/reactos/sdk/include/reactos/idl/pnp.acf
@@ -1,5 +1,5 @@
 [
-   explicit_handle
+    explicit_handle
 ]
 interface pnp
 {
diff --git a/reactos/sdk/include/reactos/idl/sam.acf b/reactos/sdk/include/reactos/idl/sam.acf
index 6dce6618b49..74479458d93 100644
--- a/reactos/sdk/include/reactos/idl/sam.acf
+++ b/reactos/sdk/include/reactos/idl/sam.acf
@@ -1,5 +1,5 @@
 [
-   explicit_handle
+    explicit_handle
 ]
 interface samr
 {
diff --git a/reactos/sdk/include/reactos/idl/svcctl.acf b/reactos/sdk/include/reactos/idl/svcctl.acf
index b3e0cf4b7ad..f236bab2fb0 100644
--- a/reactos/sdk/include/reactos/idl/svcctl.acf
+++ b/reactos/sdk/include/reactos/idl/svcctl.acf
@@ -1,5 +1,5 @@
 [
-   explicit_handle
+    explicit_handle
 ]
 interface svcctl
 {
diff --git a/reactos/sdk/include/reactos/idl/winreg.acf b/reactos/sdk/include/reactos/idl/winreg.acf
index dbab62af61b..40b9fb92d6f 100644
--- a/reactos/sdk/include/reactos/idl/winreg.acf
+++ b/reactos/sdk/include/reactos/idl/winreg.acf
@@ -1,5 +1,5 @@
 [
-   explicit_handle
+    explicit_handle
 ]
 interface winreg
 {