diff --git a/src/XlibInt.c b/src/XlibInt.c
index 5edf7896..4159923e 100644
--- a/src/XlibInt.c
+++ b/src/XlibInt.c
@@ -3213,7 +3213,7 @@ static doData32(
 void _XData32(
     Display *dpy,
     long *data,
-    unsigned len,
+    unsigned len)
 {
     char packbuffer[PACKBUFFERSIZE];
     unsigned nunits = PACKBUFFERSIZE >> 2;