diff --git a/genprotimg/boot/Makefile b/genprotimg/boot/Makefile
index c9ba5b38..799df9cc 100644
--- a/genprotimg/boot/Makefile
+++ b/genprotimg/boot/Makefile
@@ -79,6 +79,7 @@ stage3b.elf: head.o $(ZIPL_OBJS)
 
 %.bin.debug: %.elf
 	$(OBJCOPY) --only-keep-debug $< $@
+	@chmod a-x $@
 
 %.bin: %.elf
 	$(OBJCOPY) -O binary $< $@
diff --git a/zipl/boot/Makefile b/zipl/boot/Makefile
index 9ca9717e..499fb537 100644
--- a/zipl/boot/Makefile
+++ b/zipl/boot/Makefile
@@ -76,12 +76,15 @@ stage3.exec: head.o stage3.o kdump3.o libc.o ebcdic.o ebcdic_conv.o sclp.o \
 
 %.exec:	%.o
 	$(LINK) -Wl,-T,$(filter %.lds,$^) $(NO_PIE_LDFLAGS) $(NO_WARN_RWX_SEGMENTS_LDFLAGS) -Wl,--build-id=none -m64 -static -nostdlib $(filter %.o, $^) -o $@
+	@chmod a-x $@
 
 %.bin.debug: %.exec
 	$(OBJCOPY) --only-keep-debug $< $@
+	@chmod a-x $@
 
 %.bin:	%.exec
 	$(OBJCOPY) -O binary $< $@
+	@chmod a-x $@
 
 
 clean: