diff --git a/mms-dump/Makefile b/mms-dump/Makefile
index 5e0551c..4e78c78 100644
--- a/mms-dump/Makefile
+++ b/mms-dump/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: all debug release clean
 
diff --git a/mms-engine/Makefile b/mms-engine/Makefile
index 4e0e0f5..bbaa48a 100644
--- a/mms-engine/Makefile
+++ b/mms-engine/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: gnu-makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: all debug release clean cleaner
 .PHONY: mms_lib_debug_lib mms_lib_release_lib
diff --git a/mms-handler-dbus/Makefile b/mms-handler-dbus/Makefile
index 37049b3..e3024be 100644
--- a/mms-handler-dbus/Makefile
+++ b/mms-handler-dbus/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: gnu-makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: clean all debug release
 
diff --git a/mms-handler-dbus/test/mms_handler_dbus_client/Makefile b/mms-handler-dbus/test/mms_handler_dbus_client/Makefile
index f9abeef..94ff1c9 100644
--- a/mms-handler-dbus/test/mms_handler_dbus_client/Makefile
+++ b/mms-handler-dbus/test/mms_handler_dbus_client/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: all debug release clean
 .PHONY: mms_lib_debug_lib mms_lib_release_lib
diff --git a/mms-lib/Makefile b/mms-lib/Makefile
index 0699546..04acb23 100644
--- a/mms-lib/Makefile
+++ b/mms-lib/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: gnu-makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: clean all debug release
 
diff --git a/mms-ofono/Makefile b/mms-ofono/Makefile
index e2beb25..6578471 100644
--- a/mms-ofono/Makefile
+++ b/mms-ofono/Makefile
@@ -1,4 +1,4 @@
-# -*- Mode: gnu-makefile -*-
+# -*- Mode: makefile-gmake -*-
 
 .PHONY: clean all debug release