diff --git a/configure.ac b/configure.ac
index 44197da3e5..0d3964a40e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1749,7 +1749,7 @@ if test "x$with_webp" != xno; then
 fi
 
 if test "x$have_webp" = xyes; then
-  MIME_TYPES="$MIME_TYPES;image/x-webp"
+  MIME_TYPES="$MIME_TYPES;image/webp;image/x-webp"
 fi
 
 AM_CONDITIONAL(HAVE_WEBP, test "x$have_webp" = xyes)