diff --git a/.changeset/gold-kiwis-peel.md b/.changeset/gold-kiwis-peel.md
new file mode 100644
index 00000000..c2c1ab3f
--- /dev/null
+++ b/.changeset/gold-kiwis-peel.md
@@ -0,0 +1,5 @@
+---
+'markdown-to-jsx': patch
+---
+
+Factor out unnecessary element cloning.
diff --git a/index.tsx b/index.tsx
index 36f76c7f..e91773ad 100644
--- a/index.tsx
+++ b/index.tsx
@@ -1265,9 +1265,7 @@ export function compiler(
           (HTML_BLOCK_ELEMENT_R.test(normalizedValue) ||
             HTML_SELF_CLOSING_ELEMENT_R.test(normalizedValue))
         ) {
-          map[mappedKey] = React.cloneElement(compile(normalizedValue.trim()), {
-            key: index,
-          })
+          map[mappedKey] = compile(normalizedValue.trim())
         }
       } else if (raw !== 'style') {
         map[ATTRIBUTE_TO_JSX_PROP_MAP[raw] || raw] = true