@@ -21,11 +21,11 @@
 #include <stdlib.h>
 
 #include "ObjFW_RT.h"
 #include "private.h"
 
-static objc_enumeration_mutation_handler enumerationMutationHandler = NULL;
+static objc_enumeration_mutation_handler_t enumerationMutationHandler = NULL;
 
 void
 objc_enumerationMutation(id object)
 {
 	if (enumerationMutationHandler != NULL)
@@ -33,9 +33,9 @@
 	else
 		OBJC_ERROR("Object was mutated during enumeration!");
 }
 
 void
-objc_setEnumerationMutationHandler(objc_enumeration_mutation_handler handler)
+objc_setEnumerationMutationHandler(objc_enumeration_mutation_handler_t handler)
 {
 	enumerationMutationHandler = handler;
 }