diff --git a/source/quakefs.c b/source/quakefs.c
index 3425a72..e8e9773 100644
--- a/source/quakefs.c
+++ b/source/quakefs.c
@@ -179,7 +179,7 @@ COM_FileBase (char *in, char *out)
 	while (s != in && *s != '.')
 		s--;
 
-	for (s2 = s; *s2 && *s2 != '/'; s2--);
+	for (s2 = s; s2 != in && *s2 && *s2 != '/'; s2--);
 
 	if (s - s2 < 2)
 		strcpy (out, "?model?");