diff --git a/src/generator/MutantGenerator.ts b/src/generator/MutantGenerator.ts
index a3c71b8..57d84b1 100644
--- a/src/generator/MutantGenerator.ts
+++ b/src/generator/MutantGenerator.ts
@@ -93,7 +93,7 @@ export class MutantGenerator {
     const subDirName =
       shortTemplateFileName +
       "_" +
-      this.model.getModelName().replace('/','_') + // avoid slashes in directory names
+      this.model.getModelName().replace("/", "_") + // avoid slashes in directory names
       "_" +
       tempAsString;
     return subDirName;