diff --git a/.changeset/tall-tips-fail.md b/.changeset/tall-tips-fail.md
new file mode 100644
index 00000000..bedcf4c7
--- /dev/null
+++ b/.changeset/tall-tips-fail.md
@@ -0,0 +1,5 @@
+---
+"gyp-to-cmake": patch
+---
+
+Fixed escaping bundle ids to no longer contain "\_"
diff --git a/packages/gyp-to-cmake/src/transformer.ts b/packages/gyp-to-cmake/src/transformer.ts
index a5660eba..4901df4f 100644
--- a/packages/gyp-to-cmake/src/transformer.ts
+++ b/packages/gyp-to-cmake/src/transformer.ts
@@ -27,8 +27,12 @@ function escapeSpaces(source: string) {
   return source.replace(/ /g, "\\ ");
 }
 
-function escapeBundleIdentifier(identifier: string) {
-  return identifier.replaceAll("__", ".").replace(/[^A-Za-z0-9.-_]/g, "-");
+/**
+ * Escapes any input to match a CFBundleIdentifier
+ * See https://developer.apple.com/documentation/bundleresources/information-property-list/cfbundleidentifier
+ */
+export function escapeBundleIdentifier(input: string) {
+  return input.replaceAll("__", ".").replace(/[^A-Za-z0-9-.]/g, "-");
 }
 
 /**