diff --git a/Quake/Makefile.w32 b/Quake/Makefile.w32
index 9af0d46e..8cd9469c 100644
--- a/Quake/Makefile.w32
+++ b/Quake/Makefile.w32
@@ -183,7 +183,7 @@ DEFAULT_TARGET := quakespasm.exe
 %.o:	%.c
 	$(CC) $(DFLAGS) -c $(CFLAGS) $(SDL_CFLAGS) -o $@ $^
 %.res:	../Windows/%.rc
-	$(WINDRES) --output-format=coff -I../Windows -o $@ $^
+	$(WINDRES) -I../Windows --output-format=coff --target=pe-i386 -o $@ $^
 
 # ----------------------------------------------------------------------------
 # objects
diff --git a/Quake/Makefile.w64 b/Quake/Makefile.w64
index a4de7424..bffce7ed 100644
--- a/Quake/Makefile.w64
+++ b/Quake/Makefile.w64
@@ -181,7 +181,7 @@ DEFAULT_TARGET := quakespasm.exe
 %.o:	%.c
 	$(CC) $(DFLAGS) -c $(CFLAGS) $(SDL_CFLAGS) -o $@ $^
 %.res:	../Windows/%.rc
-	$(WINDRES) --output-format=coff -I../Windows -o $@ $^
+	$(WINDRES) -I../Windows --output-format=coff --target=pe-x86-64 -o $@ $^
 
 # ----------------------------------------------------------------------------
 # objects