diff --git a/src/main.cc b/src/main.cc
index 1081d6f1..8725e735 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -377,7 +377,7 @@ main(int argc, char** argv) {
       CMD2_REDIRECT_GENERIC_NO_EXPORT("schedule_remove", "schedule_remove2");
     }
 
-#if LT_SLIM_VERSION == 1
+#if LT_SLIM_VERSION != 1
     if (rpc::call_command_value("method.use_deprecated")) {
       // Deprecated in 0.7.0: