diff --git a/Plugins/PluginsShared/PluginUtils.swift b/Plugins/PluginsShared/PluginUtils.swift
index 0fb3621..e85232a 100644
--- a/Plugins/PluginsShared/PluginUtils.swift
+++ b/Plugins/PluginsShared/PluginUtils.swift
@@ -109,8 +109,10 @@ func constructProtocGenGRPCSwiftArguments(
 
 extension URL {
   /// Returns `URL.absoluteString` with the `file://` scheme prefix removed
+  ///
+  /// Note: This method also removes percent-encoded UTF-8 characters
   var absoluteStringNoScheme: String {
-    var absoluteString = self.absoluteString
+    var absoluteString = self.absoluteString.removingPercentEncoding ?? self.absoluteString
     absoluteString.trimPrefix("file://")
     return absoluteString
   }