4 files changed, 7 insertions, 7 deletions
diff --git a/backends/events/default/default-events.h b/backends/events/default/default-events.h
index 06db1dc027..73dc60695b 100644
--- a/backends/events/default/default-events.h
+++ b/backends/events/default/default-events.h
@@ -31,10 +31,10 @@
 
 namespace Common {
 #ifdef ENABLE_KEYMAPPER
-	class Keymapper;
+class Keymapper;
 #endif
 #ifdef ENABLE_VKEYBD
-	class VirtualKeyboard;
+class VirtualKeyboard;
 #endif
 }
 
diff --git a/backends/keymapper/remap-dialog.h b/backends/keymapper/remap-dialog.h
index 2c0e79a79d..c1b5760fb6 100644
--- a/backends/keymapper/remap-dialog.h
+++ b/backends/keymapper/remap-dialog.h
@@ -33,8 +33,8 @@
 #include "gui/dialog.h"
 
 namespace GUI {
-	class PopupWidget;
-	class ScrollBarWidget;
+class PopupWidget;
+class ScrollBarWidget;
 }
 
 namespace Common {
diff --git a/backends/platform/ps2/systemps2.h b/backends/platform/ps2/systemps2.h
index 37575f399f..c13dcb0f07 100644
--- a/backends/platform/ps2/systemps2.h
+++ b/backends/platform/ps2/systemps2.h
@@ -47,11 +47,11 @@ struct Ps2Mutex {
 };
 
 namespace Common {
-	class TimerManager;
+class TimerManager;
 };
 
 namespace Audio {
-	class MixerImpl;
+class MixerImpl;
 };
 
 class OSystem_PS2 : public BaseBackend, public PaletteManager {
diff --git a/backends/platform/psp/mp3.h b/backends/platform/psp/mp3.h
index 1d2fe5ec2f..95491d5788 100644
--- a/backends/platform/psp/mp3.h
+++ b/backends/platform/psp/mp3.h
@@ -30,7 +30,7 @@
 #include "common/scummsys.h"
 
 namespace Common {
-	class SeekableReadStream;
+class SeekableReadStream;
 }
 
 namespace Audio {