diff --git a/configs/xtrs/nsh/Make.defs b/configs/xtrs/nsh/Make.defs
index 92d1e373895..1c582dffb21 100644
--- a/configs/xtrs/nsh/Make.defs
+++ b/configs/xtrs/nsh/Make.defs
@@ -65,7 +65,7 @@ SDCCLIB			= z80.lib
 ASMEXT			= .asm
 OBJEXT			= .o
 LIBEXT			= .lib
-EXEEXT			= .hex
+EXEEXT			= .CMD
 
 define COMPILE
 	@echo "CC: $1"
diff --git a/configs/xtrs/ostest/Make.defs b/configs/xtrs/ostest/Make.defs
index 48bae87439a..47de3f0ee80 100644
--- a/configs/xtrs/ostest/Make.defs
+++ b/configs/xtrs/ostest/Make.defs
@@ -65,7 +65,7 @@ SDCCLIB			= z80.lib
 ASMEXT			= .asm
 OBJEXT			= .o
 LIBEXT			= .lib
-EXEEXT			= .hex
+EXEEXT			= .CMD
 
 define COMPILE
 	@echo "CC: $1"
diff --git a/configs/xtrs/pashello/Make.defs b/configs/xtrs/pashello/Make.defs
index 48bae87439a..47de3f0ee80 100644
--- a/configs/xtrs/pashello/Make.defs
+++ b/configs/xtrs/pashello/Make.defs
@@ -65,7 +65,7 @@ SDCCLIB			= z80.lib
 ASMEXT			= .asm
 OBJEXT			= .o
 LIBEXT			= .lib
-EXEEXT			= .hex
+EXEEXT			= .CMD
 
 define COMPILE
 	@echo "CC: $1"