diff --git a/tools/ratbagctl.test.in b/tools/ratbagctl.test.in
index 5879d53c..4c0f8547 100755
--- a/tools/ratbagctl.test.in
+++ b/tools/ratbagctl.test.in
@@ -496,7 +496,7 @@ def setUpModule():
 
     # FIXME: kill any running ratabgd.devel
 
-    ratbagd_process = subprocess.Popen([os.path.join('@MESON_BUILD_ROOT@', "ratbagd.devel")], shell=True)
+    ratbagd_process = subprocess.Popen([os.path.join('@MESON_BUILD_ROOT@', "ratbagd.devel")], shell=False)
 
     os.environ['RATBAGCTL_DEVEL'] = "org.freedesktop.ratbag_devel1_@ratbagd_sha@"