diff --git a/packages/service/patches/310-fix-randomly-open-file.patch b/packages/service/patches/310-fix-randomly-open-file.patch
new file mode 100644
index 0000000..d3522c7
--- /dev/null
+++ b/packages/service/patches/310-fix-randomly-open-file.patch
@@ -0,0 +1,17 @@
+diff --git a/src/typeScriptServiceClientHost.ts b/src/typeScriptServiceClientHost.ts
+index 0268e5f..b58be99 100644
+--- a/src/typeScriptServiceClientHost.ts
++++ b/src/typeScriptServiceClientHost.ts
+@@ -206,12 +206,6 @@ export default class TypeScriptServiceClientHost extends Disposable {
+ 					return language;
+ 				}
+ 			}
+-
+-			// If that doesn't work, fallback to using a text document language mode.
+-			// This is not ideal since we have to open the document but should always
+-			// be correct
+-			const doc = await vscode.workspace.openTextDocument(resource);
+-			return this.languages.find(language => language.handlesDocument(doc));
+ 		} catch {
+ 			return undefined;
+ 		}