1 files changed, 1 insertions, 1 deletions
diff --git a/common/system.h b/common/system.h
index f3fcea129a..4e93350619 100644
--- a/common/system.h
+++ b/common/system.h
@@ -72,7 +72,7 @@ public:
 		PROP_GET_FULLSCREEN = 7
 	};
 	union Property {
-		char *caption;
+		const char *caption;
 		int cd_num;
 		int gfx_mode;
 		bool show_cursor;