diff --git a/Makefile b/Makefile
index 37719698c..e38a7eb65 100644
--- a/Makefile
+++ b/Makefile
@@ -87,7 +87,7 @@ $(OUT)%.o.ctr: $(OUT)%.o
 
 $(OUT)compile_time_request.o: $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) ./scripts/buildcommands.py
 	@echo "  Building $@"
-	$(Q)cat $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) | tr '\0' '\n' > $(OUT)compile_time_request.txt
+	$(Q)cat $(patsubst %.c, $(OUT)src/%.o.ctr,$(src-y)) | tr -s '\0' '\n' > $(OUT)compile_time_request.txt
 	$(Q)$(PYTHON) ./scripts/buildcommands.py -d $(OUT)klipper.dict -t "$(CC);$(AS);$(LD);$(OBJCOPY);$(OBJDUMP);$(STRIP)" $(OUT)compile_time_request.txt $(OUT)compile_time_request.c
 	$(Q)$(CC) $(CFLAGS) -c $(OUT)compile_time_request.c -o $@