diff --git a/CMakeModules/FindFFMPEG.cmake b/CMakeModules/FindFFMPEG.cmake
index a66bb86..4ad1c79 100644
--- a/CMakeModules/FindFFMPEG.cmake
+++ b/CMakeModules/FindFFMPEG.cmake
@@ -24,6 +24,7 @@ include(FindPackageHandleStandardArgs)
         FOUND_VAR FFMPEG_FOUND
         VERSION_VAR FFMPEG_VERSION
         HANDLE_COMPONENTS
+        REQUIRED_VARS
     )
 
 if(FFMPEG_LIBRARIES AND FFMPEG_INCLUDE_DIR)