diff --git a/pkgs/build-support/dart/fetch-dart-deps/default.nix b/pkgs/build-support/dart/fetch-dart-deps/default.nix
index 51052cae18f4..27b5e1f1b20d 100644
--- a/pkgs/build-support/dart/fetch-dart-deps/default.nix
+++ b/pkgs/build-support/dart/fetch-dart-deps/default.nix
@@ -160,7 +160,14 @@ let
 
     configurePhase = ''
       runHook preConfigure
-      doPubGet dart pub get --offline
+
+      ${sdkSetupScript}
+
+      _pub_get() {
+        ${pubGetScript} --offline
+      }
+      doPubGet _pub_get
+
       runHook postConfigure
     '';