diff --git a/ffmpeg.c b/ffmpeg.c
index 741b74c58b..5b0610cf7e 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -146,7 +146,7 @@ static int audio_volume = 256;
 static int exit_on_error = 0;
 static int using_stdin = 0;
 static int run_as_daemon  = 0;
-static int q_pressed = 0;
+static volatile int q_pressed = 0;
 static int64_t video_size = 0;
 static int64_t audio_size = 0;
 static int64_t extra_size = 0;