diff --git a/Makefile b/Makefile
index 66e4bd3e16ef17ca4f5a120ca00cd4529195a961..5e458ba9b8d1d3dccb697d22fa2bc9ecdff7fa4e 100644
--- a/Makefile
+++ b/Makefile
@@ -554,7 +554,7 @@ repo: repo_packages repo_package_info repo_metadata
 config $(CONFIG_FILE):
 	@echo "Generating configuration $(CONFIG_FILE)"
 	echo "#see $(CONFIG_FILE_DEFAULTS) for default values." > "$(CONFIG_FILE)"
-	echo -e -n "$(foreach option,$(CONFIGURABLE),$(option)=$($(option))\n)" | tr -d "[:blank:]" >> "$(CONFIG_FILE)"
+	echo -e -n "$(foreach option,$(CONFIGURABLE),$(option)=$(strip $($(option)))\n)" >> "$(CONFIG_FILE)"
 
 config_clean:
 	$(RM) $(CONFIG_FILE)