diff --git a/shared/editor/extensions/PasteHandler.ts b/shared/editor/extensions/PasteHandler.ts
index e7cd1f859..5a7547ae6 100644
--- a/shared/editor/extensions/PasteHandler.ts
+++ b/shared/editor/extensions/PasteHandler.ts
@@ -129,8 +129,13 @@ export default class PasteHandler extends Extension {
             // was pasted.
             const vscodeMeta = vscode ? JSON.parse(vscode) : undefined;
             const pasteCodeLanguage = vscodeMeta?.mode;
+            const supportsCodeBlock = !!view.state.schema.nodes.code_fence;
 
-            if (pasteCodeLanguage && pasteCodeLanguage !== "markdown") {
+            if (
+              supportsCodeBlock &&
+              pasteCodeLanguage &&
+              pasteCodeLanguage !== "markdown"
+            ) {
               event.preventDefault();
               view.dispatch(
                 view.state.tr