diff --git a/lib/Compilation.js b/lib/Compilation.js
index 9ebce7834f3..66ae146f439 100644
--- a/lib/Compilation.js
+++ b/lib/Compilation.js
@@ -4241,7 +4241,11 @@ This prevents using hashes of each other and should be avoided.`);
 			if (!isSourceEqual(this.assets[file], source)) {
 				this.errors.push(
 					new WebpackError(
-						`Conflict: Multiple assets emit different content to the same filename ${file}`
+						`Conflict: Multiple assets emit different content to the same filename ${file}${
+							assetInfo.sourceFilename
+								? `. Original source ${assetInfo.sourceFilename}`
+								: ""
+						}`
 					)
 				);
 				this.assets[file] = source;