diff --git a/packages/pyright-scip/src/virtualenv/PythonEnvironment.ts b/packages/pyright-scip/src/virtualenv/PythonEnvironment.ts
index 0220ea1ed..e21db97b4 100644
--- a/packages/pyright-scip/src/virtualenv/PythonEnvironment.ts
+++ b/packages/pyright-scip/src/virtualenv/PythonEnvironment.ts
@@ -1,7 +1,7 @@
 import * as path from 'path';
 import PythonPackage from './PythonPackage';
 
-const pathSepRegex = new RegExp(path.sep, 'g');
+const pathSepRegex = new RegExp(path.sep.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g');
 
 export default class PythonEnvironment {
     /// Maps a module name (x.y.z) to an index in this.packages