diff --git a/arch/sim/src/sim/up_setjmp32.S b/arch/sim/src/sim/up_setjmp32.S
index a1b72840f82..13b202e63c7 100644
--- a/arch/sim/src/sim/up_setjmp32.S
+++ b/arch/sim/src/sim/up_setjmp32.S
@@ -46,8 +46,12 @@
 #ifdef __CYGWIN__
 # define SYMBOL(s) _##s
 #else
+#ifdef __ELF__
+# define SYMBOL(s) _##s
+#else
 # define SYMBOL(s) s
 #endif
+#endif
 
 /**************************************************************************
  * Public Functions
diff --git a/arch/sim/src/sim/up_setjmp64.S b/arch/sim/src/sim/up_setjmp64.S
index af7449a9f20..0e1063ba637 100644
--- a/arch/sim/src/sim/up_setjmp64.S
+++ b/arch/sim/src/sim/up_setjmp64.S
@@ -81,7 +81,11 @@
 //# define SYMBOL(s) _##s
 # define SYMBOL(s) s
 #else
+#ifdef __ELF__
 # define SYMBOL(s) s
+#else
+# define SYMBOL(s) _##s
+#endif
 #endif
 
 /**************************************************************************