diff --git a/.changeset/tough-bees-smoke.md b/.changeset/tough-bees-smoke.md
new file mode 100644
index 00000000..26fdc211
--- /dev/null
+++ b/.changeset/tough-bees-smoke.md
@@ -0,0 +1,5 @@
+---
+'vite-plugin-kit-routes': minor
+---
+
+Replace colons in path identifiers
diff --git a/packages/vite-plugin-kit-routes/src/lib/plugin.ts b/packages/vite-plugin-kit-routes/src/lib/plugin.ts
index 705b3aab..a63d1d3f 100644
--- a/packages/vite-plugin-kit-routes/src/lib/plugin.ts
+++ b/packages/vite-plugin-kit-routes/src/lib/plugin.ts
@@ -282,7 +282,7 @@ export function formatKey(key: string, o: Options) {
     return toRet
   }
 
-  const toReplace = ['/', '[', ']', '(', ')', '-', '=', '.']
+  const toReplace = ['/', '[', ']', '(', ')', '-', '=', '.', ':']
   toRet = toRet
     .split('')
     .map(c => (toReplace.includes(c) ? '_' : c))