diff --git a/libavcodec/videotoolbox.c b/libavcodec/videotoolbox.c
index 7f726120cd..502b2e39a9 100644
--- a/libavcodec/videotoolbox.c
+++ b/libavcodec/videotoolbox.c
@@ -407,7 +407,7 @@ static CFDictionaryRef videotoolbox_decoder_config_create(CMVideoCodecType codec
                                                           AVCodecContext *avctx)
 {
     CFMutableDictionaryRef config_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
-                                                                   1,
+                                                                   0,
                                                                    &kCFTypeDictionaryKeyCallBacks,
                                                                    &kCFTypeDictionaryValueCallBacks);