diff --git a/tests/ibus_live_test.c b/tests/ibus_live_test.c
index 90b1196..18e7424 100644
--- a/tests/ibus_live_test.c
+++ b/tests/ibus_live_test.c
@@ -283,7 +283,6 @@ startdaemon(Daemon *d, char *program, char *mapdir)
 		setenv("XDG_CONFIG_HOME", d->config, 1);
 		setenv("HOME", d->home, 1);
 		unsetenv("DISPLAY");
-		unsetenv("WAYLAND_DISPLAY");
 		unsetenv("DBUS_SESSION_BUS_ADDRESS");
 		unsetenv("IBUS_ADDRESS");
 		execl(program, program, mapdir, missing, (char*)0);
diff --git a/tests/ipc_live_test.c b/tests/ipc_live_test.c
index aba2af4..7a06427 100644
--- a/tests/ipc_live_test.c
+++ b/tests/ipc_live_test.c
@@ -232,7 +232,6 @@ startdaemon(Daemon *d, char *program, char *mapdir)
 		setenv("XDG_CONFIG_HOME", d->config, 1);
 		setenv("HOME", d->home, 1);
 		unsetenv("DISPLAY");
-		unsetenv("WAYLAND_DISPLAY");
 		unsetenv("DBUS_SESSION_BUS_ADDRESS");
 		unsetenv("IBUS_ADDRESS");
 		execl(program, program, mapdir, missing, (char*)0);