diff --git a/sys/src/libdraw/event.c b/sys/src/libdraw/event.c
index 05052477f..5790c97f3 100644
--- a/sys/src/libdraw/event.c
+++ b/sys/src/libdraw/event.c
@@ -460,7 +460,7 @@ int
 eatomouse(Mouse *m, char *buf, int n)
 {
 	if(n != 1+4*12){
-		werrstr("atomouse: bad count");
+		werrstr("eatomouse: bad count");
 		return -1;
 	}