diff --git a/src/ARM.cpp b/src/ARM.cpp
index 0d93dc45..f75c1e27 100644
--- a/src/ARM.cpp
+++ b/src/ARM.cpp
@@ -115,7 +115,7 @@ ARM::ARM(u32 num, bool jit, std::optional<GDBArgs> gdb, melonDS::NDS& nds) :
     Num(num), // well uh
     NDS(nds)
 {
-    SetGdbArgs(jit ? gdb : std::nullopt);
+    SetGdbArgs(jit ? std::nullopt : gdb);
 }
 
 ARM::~ARM()