diff --git a/CMakeLists.txt b/CMakeLists.txt
index bbb42df1..d30231e6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -373,6 +373,12 @@ IF( ENABLE_GTK )
     )
 ENDIF( ENABLE_GTK )
 
+IF( ENABLE_FFMPEG )
+    INCLUDE_DIRECTORIES(
+        ${FFMPEG_INCLUDE_DIRS}
+    )
+ENDIF( ENABLE_FFMPEG )
+
 ADD_LIBRARY(
     fex
     ${SRC_FEX}