diff --git a/tests/run-test.sh.in b/tests/run-test.sh.in
index 71b35aca0..ea6d15726 100755
--- a/tests/run-test.sh.in
+++ b/tests/run-test.sh.in
@@ -36,7 +36,7 @@ GJS_DEBUG_OUTPUT=stderr
 $verbose || GJS_DEBUG_TOPICS="JS ERROR;JS LOG"
 GNOME_SHELL_TESTSDIR="$srcdir/"
 GNOME_SHELL_JS="$srcdir/../js"
-GNOME_SHELL_DATADIR="$srcdir/../data"
+GNOME_SHELL_DATADIR="$builddir/../data"
 
 export GI_TYPELIB_PATH GJS_PATH GJS_DEBUG_OUTPUT GJS_DEBUG_TOPICS GNOME_SHELL_TESTSDIR GNOME_SHELL_JS GNOME_SHELL_DATADIR LD_PRELOAD
 
diff --git a/tests/testcommon/test.css b/tests/testcommon/test.css
index a181c8a99..b82d2309b 100644
--- a/tests/testcommon/test.css
+++ b/tests/testcommon/test.css
@@ -1,4 +1,4 @@
-@import "../../data/theme/gnome-shell.css";
+@import url("resource:///org/gnome/shell/theme/gnome-shell.css");
 
 stage {
     font: 16pt serif;
diff --git a/tests/testcommon/ui.js b/tests/testcommon/ui.js
index 51c136a39..df2655feb 100644
--- a/tests/testcommon/ui.js
+++ b/tests/testcommon/ui.js
@@ -14,6 +14,9 @@ const Environment = imports.ui.environment;
 
 function init(stage) {
     Environment.init();
+    let themeResource = Gio.Resource.load(global.datadir + '/gnome-shell-theme.gresource');
+    themeResource._register();
+
     let context = St.ThemeContext.get_for_stage(stage);
     let stylesheetPath = GLib.getenv("GNOME_SHELL_TESTSDIR") + "/testcommon/test.css";
     let theme = new St.Theme({ application_stylesheet: Gio.File.new_for_path(stylesheetPath) });