diff --git a/src/main.c b/src/main.c
index ace007d5..fef3a504 100644
--- a/src/main.c
+++ b/src/main.c
@@ -50,6 +50,7 @@
 #include <libavformat/avformat.h>
 #include <libavfilter/avfilter.h>
 
+#include <pthread.h>
 #include <gcrypt.h>
 GCRY_THREAD_OPTION_PTHREAD_IMPL;