diff --git a/pkgs/build-support/build-graalvm-native-image/default.nix b/pkgs/build-support/build-graalvm-native-image/default.nix
index 09b2d9f73a2b..3aedd61ea6ce 100644
--- a/pkgs/build-support/build-graalvm-native-image/default.nix
+++ b/pkgs/build-support/build-graalvm-native-image/default.nix
@@ -33,6 +33,8 @@ stdenv.mkDerivation (args // {
   nativeImageBuildArgs = nativeImageBuildArgs ++ extraNativeImageBuildArgs ++ [ graalvmXmx ];
 
   buildPhase = args.buildPhase or ''
+    export LC_ALL="en_US.UTF-8"
+
     runHook preBuild
 
     native-image ''${nativeImageBuildArgs[@]}