diff --git a/tests/stubs.nix b/tests/stubs.nix
index 24158c2c3..078a760fd 100644
--- a/tests/stubs.nix
+++ b/tests/stubs.nix
@@ -64,8 +64,19 @@ let
             meta.mainProgram = name;
           } buildScript;
 
+      drvExtraAttrs = lib.filterAttrs (_: v: !lib.isFunction v) extraAttrs;
+
+      outerExtraAttrs = lib.filterAttrs (_: lib.isFunction) extraAttrs;
+
+      overriddenPkg =
+        if drvExtraAttrs == { } then
+          pkg
+        else
+          pkg.overrideAttrs (old: lib.recursiveUpdate old drvExtraAttrs);
+
       stubbedPkg =
-        pkg
+        overriddenPkg
+        // outerExtraAttrs
         // lib.optionalAttrs (outPath != null) {
           inherit outPath;
 
@@ -74,12 +85,11 @@ let
 
           # Allow the original package to be used in derivation inputs
           __spliced = {
-            buildHost = pkg;
-            hostTarget = pkg;
+            buildHost = overriddenPkg;
+            hostTarget = overriddenPkg;
           };
         }
-        // lib.optionalAttrs (version != null) { inherit version; }
-        // extraAttrs;
+        // lib.optionalAttrs (version != null) { inherit version; };
     in
     stubbedPkg;