diff --git a/packages/core/src/pasteRules/markPasteRule.ts b/packages/core/src/pasteRules/markPasteRule.ts
index 6dd7370e..3e11ef1e 100644
--- a/packages/core/src/pasteRules/markPasteRule.ts
+++ b/packages/core/src/pasteRules/markPasteRule.ts
@@ -35,7 +35,7 @@ export default function (
               ? getAttributes(match)
               : getAttributes
 
-            if (!attrs) {
+            if (!attrs && attrs !== undefined) {
               continue
             }