diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index bdec30151..c34083d2e 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -2621,7 +2621,7 @@ void DerivationGoal::runChild()
             ;
         }
 #if __APPLE__
-        else {
+        else if (getEnv("_NIX_TEST_NO_SANDBOX") == "") {
             /* This has to appear before import statements. */
             std::string sandboxProfile = "(version 1)\n";
 
@@ -2736,13 +2736,12 @@ void DerivationGoal::runChild()
             args.push_back("_GLOBAL_TMP_DIR=" + globalTmpDir);
             args.push_back(drv->builder);
         }
-#else
+#endif
         else {
             builder = drv->builder.c_str();
             string builderBasename = baseNameOf(drv->builder);
             args.push_back(builderBasename);
         }
-#endif
 
         for (auto & i : drv->args)
             args.push_back(rewriteStrings(i, inputRewrites));
diff --git a/tests/common.sh.in b/tests/common.sh.in
index 4565a490a..6c3804a25 100644
--- a/tests/common.sh.in
+++ b/tests/common.sh.in
@@ -15,6 +15,10 @@ export NIX_STATE_DIR=$TEST_ROOT/var/nix
 export NIX_CONF_DIR=$TEST_ROOT/etc
 export NIX_MANIFESTS_DIR=$TEST_ROOT/var/nix/manifests
 export _NIX_TEST_SHARED=$TEST_ROOT/shared
+if [[ -n $NIX_STORE ]]; then
+    export _NIX_TEST_NO_SANDBOX=1
+fi
+export _NIX_IN_TEST=$TEST_ROOT/shared
 export NIX_REMOTE=$NIX_REMOTE_
 unset NIX_PATH
 export TEST_HOME=$TEST_ROOT/test-home