diff --git a/gui-osx/screen.c b/gui-osx/screen.c
index 0e83574..49b2762 100644
--- a/gui-osx/screen.c
+++ b/gui-osx/screen.c
@@ -628,7 +628,7 @@ clipread(void)
 				}
 				CFIndex length = CFDataGetLength(cfdata)/sizeof(Rune);
 				if (length > sizeof rsnarf) length = sizeof rsnarf;
-				CFDataGetBytes(cfdata, CFRangeMake(0, length), (uint8_t *)rsnarf);
+				CFDataGetBytes(cfdata, CFRangeMake(0, length*sizeof(Rune)), (uint8_t *)rsnarf);
 				snprint(snarf, sizeof snarf, "%.*S", length, rsnarf);
 				char *s = snarf;
 				while (*s) {