diff --git a/src/fringe.c b/src/fringe.c
index d8d80bb3fe9..fc4c738dc2d 100644
--- a/src/fringe.c
+++ b/src/fringe.c
@@ -101,7 +101,7 @@ struct fringe_bitmap
   ...xx...
 */
 static unsigned short question_mark_bits[] = {
-  0x3c, 0x7e, 0x7e, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18};
+  0x3c, 0x7e, 0xc3, 0xc3, 0x0c, 0x18, 0x18, 0x00, 0x18, 0x18};
 
 /* An exclamation mark.  */
 /*
@@ -117,7 +117,7 @@ static unsigned short question_mark_bits[] = {
   ...XX...
 */
 static unsigned short exclamation_mark_bits[] = {
-  0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18};
+  0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x18, 0x18};
 
 /* An arrow like this: `<-'.  */
 /*