diff --git a/package.json b/package.json
index c4e19aa1..da809d2b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "debug",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "repository": {
     "type": "git",
     "url": "git://github.com/visionmedia/debug.git"
diff --git a/src/node.js b/src/node.js
index 12a11f40..79bc085c 100644
--- a/src/node.js
+++ b/src/node.js
@@ -248,7 +248,9 @@ const {formatters} = module.exports;
 formatters.o = function (v) {
 	this.inspectOpts.colors = this.useColors;
 	return util.inspect(v, this.inspectOpts)
-		.replace(/\s*\n\s*/g, ' ');
+		.split('\n')
+		.map(str => str.trim())
+		.join(' ');
 };
 
 /**