diff --git a/libavdevice/avfoundation.m b/libavdevice/avfoundation.m
index 5b1e694947a30bc17c51156790ce2450a5a83cbe..c31a9345b571d0254068a13edd9c84c9b914addf 100644
--- a/libavdevice/avfoundation.m
+++ b/libavdevice/avfoundation.m
@@ -35,7 +35,7 @@
 #include "libavutil/time.h"
 #include "avdevice.h"
 
-static const int avf_time_base = 100;
+static const int avf_time_base = 1000000;
 
 static const AVRational avf_time_base_q = {
     .num = 1,