diff --git a/pkgs/by-name/xa/xawtv/package.nix b/pkgs/by-name/xa/xawtv/package.nix
index 3a4da5eb0eaa..5486b7b6e261 100644
--- a/pkgs/by-name/xa/xawtv/package.nix
+++ b/pkgs/by-name/xa/xawtv/package.nix
@@ -33,6 +33,8 @@ stdenv.mkDerivation rec {
     ./0001-Fix-build-for-glibc-2.32.patch
   ];
 
+  NIX_CFLAGS_COMPILE = "-Wno-error=implicit-function-declaration";
+
   buildInputs = [
     ncurses
     libjpeg