diff --git a/src/main.c b/src/main.c
index 7ec84429..b661f7ef 100644
--- a/src/main.c
+++ b/src/main.c
@@ -156,6 +156,7 @@ main (int argc, char **argv)
 				GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
 	}
 	g_object_unref (provider);
+	g_object_unref (css_file);
 
 	/* Add application specific icons to search path */
 	gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),