diff --git a/nix/avcpp.nix b/nix/avcpp.nix
index 81e85a1..bb7d757 100644
--- a/nix/avcpp.nix
+++ b/nix/avcpp.nix
@@ -22,7 +22,7 @@ in
       ./0001-fix-build-use-absolute-install-directories.patch
     ];
     nativeBuildInputs = [cmake pkg-config];
-    buildInputs = [ffmpeg_7];
+    propagatedBuildInputs = [ffmpeg_7];
     cmakeFlags = [
       (lib.cmakeBool "BUILD_TESTING" finalAttrs.doCheck)
       (lib.cmakeBool "AVCPP_NOT_SUBPROJECT" true)