diff --git a/rosapps/tests/dnsapi/dnsapi.c b/rosapps/tests/dnsapi/dnsapi.c
index 88764456f75..e82dbd35a80 100644
--- a/rosapps/tests/dnsapi/dnsapi.c
+++ b/rosapps/tests/dnsapi/dnsapi.c
@@ -1,7 +1,7 @@
 #include <windows.h>
 #include <stdio.h>
-#include <WinError.h>
-#include <WinDNS.h>
+#include <winerror.h>
+#include <windns.h>
 #include <winsock2.h>
 #include <assert.h>
 
diff --git a/rosapps/tests/dnsquery/dnsquery.c b/rosapps/tests/dnsquery/dnsquery.c
index cbba437b21b..7ceaaf3ee5f 100644
--- a/rosapps/tests/dnsquery/dnsquery.c
+++ b/rosapps/tests/dnsquery/dnsquery.c
@@ -1,7 +1,7 @@
 #include <windows.h>
 #include <stdio.h>
-#include <WinError.h>
-#include <WinDNS.h>
+#include <winerror.h>
+#include <windns.h>
 #include <assert.h>
 
 int main( int argc, char **argv ) {