diff --git a/pkgs/development/libraries/libimagequant/default.nix b/pkgs/development/libraries/libimagequant/default.nix
index 9041b373edff..5792170b9f09 100644
--- a/pkgs/development/libraries/libimagequant/default.nix
+++ b/pkgs/development/libraries/libimagequant/default.nix
@@ -26,13 +26,13 @@ rustPlatform.buildRustPackage rec {
 
   postBuild = ''
     pushd imagequant-sys
-    cargo cbuild --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
+    ${rust.envVars.setEnv} cargo cbuild --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
     popd
   '';
 
   postInstall = ''
     pushd imagequant-sys
-    cargo cinstall --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
+    ${rust.envVars.setEnv} cargo cinstall --release --frozen --prefix=${placeholder "out"} --target ${rustTargetPlatformSpec}
     popd
   '';