diff --git a/src/timeline.c b/src/timeline.c
index 62cd15b..4f39660 100644
--- a/src/timeline.c
+++ b/src/timeline.c
@@ -238,7 +238,7 @@ SYMBOL_EXPORT struct TM_Action* TM_AddNamedBackgroundAction(struct Timeline* tim
 }
 
 /*! \brief Predefined action used by TM_AddQueuedBackgroundAction */
-static TM_Action(TM_RunInBackground) {
+static TM_ACTION(TM_RunInBackground) {
 	int* delay = TM_Arg(1);
 	char* name = TM_Arg(2);
 	struct TM_Arguments* arguments = TM_Arg(3);
diff --git a/src/timeline.h b/src/timeline.h
index 24f38e6..4eb8796 100644
--- a/src/timeline.h
+++ b/src/timeline.h
@@ -133,6 +133,6 @@ bool TM_IsBackgroundEmpty(struct Timeline* timeline);
 #define TM_Arg(n) TM_GetArg(action->arguments, n)
 
 /*! \brief Macro for easy timeline action definition. */
-#define TM_Action(name) bool name(struct Game* game, struct GamestateResources* data, struct TM_Action* action)
+#define TM_ACTION(name) bool name(struct Game* game, struct GamestateResources* data, struct TM_Action* action)
 
 #endif