diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 2b17dea2a6..4aa11259cc 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -24,7 +24,7 @@
 
 #define LIBAVFILTER_VERSION_MAJOR  1
 #define LIBAVFILTER_VERSION_MINOR  0
-#define LIBAVFILTER_VERSION_MICRO  0
+#define LIBAVFILTER_VERSION_MICRO  1
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \
@@ -164,7 +164,7 @@ typedef struct AVFilterFormats AVFilterFormats;
 struct AVFilterFormats
 {
     unsigned format_count;      ///< number of formats
-    int *formats;               ///< list of formats
+    enum PixelFormat *formats;  ///< list of pixel formats
 
     unsigned refcount;          ///< number of references to this list
     AVFilterFormats ***refs;    ///< references to this list