diff --git a/ext/gd/libgd/gd_webp.c b/ext/gd/libgd/gd_webp.c
index a27398f1e491b..a0d8a0cf49f5c 100644
--- a/ext/gd/libgd/gd_webp.c
+++ b/ext/gd/libgd/gd_webp.c
@@ -113,7 +113,7 @@ void gdImageWebpCtx (gdImagePtr im, gdIOCtx * outfile, int quality)
 	}
 
 	if (!gdImageTrueColor(im)) {
-		zend_error(E_ERROR, "Paletter image not supported by webp");
+		zend_error(E_ERROR, "Palette image not supported by webp");
 		return;
 	}