diff --git a/libnm-glib/tests/Makefile.am b/libnm-glib/tests/Makefile.am
index 86732f95f0..2723aa4479 100644
--- a/libnm-glib/tests/Makefile.am
+++ b/libnm-glib/tests/Makefile.am
@@ -6,6 +6,7 @@ AM_CPPFLAGS = \
 	-I$(top_builddir)/libnm-util \
 	-I$(top_srcdir)/libnm-glib \
 	-DNM_VERSION_MAX_ALLOWED=NM_VERSION_NEXT_STABLE \
+	-DTEST_NM_SERVICE=\"$(abs_top_srcdir)/tools/test-networkmanager-service.py\" \
 	$(GLIB_CFLAGS) \
 	$(DBUS_CFLAGS)
 
@@ -35,15 +36,13 @@ test_remote_settings_client_LDADD = \
 
 ###########################################
 
-TEST_NM_SERVICE = $(top_srcdir)/tools/test-networkmanager-service.py
-
 check-local: test-nm-client test-remote-settings-client
 	if test -z "$$DBUS_SESSION_BUS_ADDRESS" ; then \
-	    dbus-launch --exit-with-session $(abs_builddir)/test-nm-client $(abs_srcdir) $(TEST_NM_SERVICE); \
-	    dbus-launch --exit-with-session $(abs_builddir)/test-remote-settings-client $(abs_srcdir) $(TEST_NM_SERVICE); \
+	    dbus-launch --exit-with-session $(abs_builddir)/test-nm-client; \
+	    dbus-launch --exit-with-session $(abs_builddir)/test-remote-settings-client; \
 	else \
-	    $(abs_builddir)/test-nm-client $(abs_srcdir) $(TEST_NM_SERVICE); \
-	    $(abs_builddir)/test-remote-settings-client $(abs_srcdir) $(TEST_NM_SERVICE); \
+	    $(abs_builddir)/test-nm-client; \
+	    $(abs_builddir)/test-remote-settings-client; \
 	fi;
 
 endif
diff --git a/libnm-glib/tests/test-nm-client.c b/libnm-glib/tests/test-nm-client.c
index 572e1fdc6b..b1874045a2 100644
--- a/libnm-glib/tests/test-nm-client.c
+++ b/libnm-glib/tests/test-nm-client.c
@@ -33,9 +33,6 @@
 #include "nm-device-wimax.h"
 #include "nm-glib-compat.h"
 
-static const char *fake_path;
-static const char *fake_bin;
-static const char *fake_exec;
 static GMainLoop *loop = NULL;
 
 /*******************************************************************/
@@ -129,7 +126,7 @@ service_init (void)
 {
 	DBusGConnection *bus;
 	ServiceInfo *sinfo;
-	const char *args[2] = { fake_exec, NULL };
+	const char *args[2] = { TEST_NM_SERVICE, NULL };
 	GError *error = NULL;
 	int i = 100;
 
@@ -142,7 +139,7 @@ service_init (void)
 	sinfo->bus = g_bus_get_sync (G_BUS_TYPE_SESSION, NULL,  NULL);
 	test_assert (sinfo->bus);
 
-	if (!g_spawn_async (fake_path, (char **) args, NULL, 0, NULL, NULL, &sinfo->pid, &error))
+	if (!g_spawn_async (NULL, (char **) args, NULL, 0, NULL, NULL, &sinfo->pid, &error))
 		test_assert_no_error (error);
 
 	/* Wait until the service is registered on the bus */
@@ -924,18 +921,12 @@ test_devices_array (void)
 int
 main (int argc, char **argv)
 {
-	g_assert (argc == 3);
-
 #if !GLIB_CHECK_VERSION (2, 35, 0)
 	g_type_init ();
 #endif
 
 	g_test_init (&argc, &argv, NULL);
 
-	fake_path = argv[1];
-	fake_bin = argv[2];
-	fake_exec = g_strdup_printf ("%s/%s", argv[1], argv[2]);
-
 	loop = g_main_loop_new (NULL, FALSE);
 
 	g_test_add_func ("/libnm-glib/device-added", test_device_added);
diff --git a/libnm-glib/tests/test-remote-settings-client.c b/libnm-glib/tests/test-remote-settings-client.c
index 9246cbbc82..c6912276ed 100644
--- a/libnm-glib/tests/test-remote-settings-client.c
+++ b/libnm-glib/tests/test-remote-settings-client.c
@@ -358,13 +358,11 @@ test_remove_connection (void)
 int
 main (int argc, char **argv)
 {
-    char *service_argv[3] = { NULL, NULL, NULL };
+    char *service_argv[2] = { TEST_NM_SERVICE, NULL };
 	int ret;
 	GError *error = NULL;
 	int i = 100;
 
-	g_assert (argc == 3);
-
 #if !GLIB_CHECK_VERSION (2, 35, 0)
 	g_type_init ();
 #endif
@@ -377,9 +375,8 @@ main (int argc, char **argv)
 		g_assert (error == NULL);
 	}
 
-	service_argv[0] = g_strdup_printf ("%s/%s", argv[1], argv[2]);
-	if (!g_spawn_async (argv[1], service_argv, NULL, 0, NULL, NULL, &spid, &error)) {
-		g_warning ("Error spawning %s: %s", argv[2], error->message);
+	if (!g_spawn_async (NULL, service_argv, NULL, 0, NULL, NULL, &spid, &error)) {
+		g_warning ("Error spawning %s: %s", TEST_NM_SERVICE, error->message);
 		g_assert (error == NULL);
 	}