diff --git a/src/Makefile.mingw b/src/Makefile.mingw
index a41ace019..d6cd7da4d 100644
--- a/src/Makefile.mingw
+++ b/src/Makefile.mingw
@@ -169,7 +169,7 @@ $(PROG).exe:	$(OBJ) $(DBOBJ) $(LZFOBJ) $(SIDOBJ) $(SLIRPOBJ)
 			$(LIBS)
 
 all:		$(PROG).exe
-ifeq ($(DEBUG), y)
+ifneq ($(DEBUG), y)
 		strip $(PROG).exe
 endif
 
diff --git a/src/Makefile.mingw64 b/src/Makefile.mingw64
index 19d33a53b..c40cd2464 100644
--- a/src/Makefile.mingw64
+++ b/src/Makefile.mingw64
@@ -169,7 +169,7 @@ $(PROG).exe:	$(OBJ) $(DBOBJ) $(LZFOBJ) $(SIDOBJ) $(SLIRPOBJ)
 			$(LIBS)
 
 all:		$(PROG).exe
-ifeq ($(DEBUG), y)
+ifneq ($(DEBUG), y)
 		strip $(PROG).exe
 endif