diff --git a/src/gui_w48.c b/src/gui_w48.c
index 353b7a6..f073926 100644
--- a/src/gui_w48.c
+++ b/src/gui_w48.c
@@ -144,7 +144,7 @@
 static HBITMAP	s_htearbitmap;	    /* bitmap used to indicate tearoff */
 #endif
 
-/* Flag that is set while processing a message that must not be interupted by
+/* Flag that is set while processing a message that must not be interrupted by
  * processing another message. */
 static int		s_busy_processing = FALSE;