diff --git a/src/composite.c b/src/composite.c
index 162c29b..8b507bc 100644
--- a/src/composite.c
+++ b/src/composite.c
@@ -83,8 +83,6 @@ PyObject *brightness(PyObject *img, float factor) {
     /* how many bytes to skip to get to the next alpha byte */
     stride = imDest->pixelsize;
     
-    x, y;
-
     xsize = imDest->xsize;
     ysize = imDest->ysize;