diff --git a/src/app/shared/validationMessages.model.ts b/src/app/shared/validationMessages.model.ts
index f9801fb80..34fd667bd 100644
--- a/src/app/shared/validationMessages.model.ts
+++ b/src/app/shared/validationMessages.model.ts
@@ -81,7 +81,7 @@ export const validationDescriptorPatterns = {
   label: '^(\\| *([a-zA-Z0-9]+(-[a-zA-Z0-9]+)*)( *, *([a-zA-Z0-9]+(-[a-zA-Z0-9]+)*))* *)$',
   versionTag: '^[a-zA-Z0-9]+([\\-_.]*[a-zA-Z0-9]+)*$',
   reference: '[\\w\\-]+((\\/|.)[\\w\\-]+)*',
-  workflowDescriptorPath: '^\\/([^\\/?:*\\|<>]+\\/)*(Snakefile\\|[^\\/?:*\\|<>]+.(smk|cwl|wdl|yaml|yml|config|ga))',
+  workflowDescriptorPath: '^\\/([^\\/?:*\\|<>]+\\/)*(Snakefile|[^\\/?:*\\|<>]+.(smk|cwl|wdl|yaml|yml|config|ga))',
   workflowName: '[a-zA-Z0-9]+([\\-_][a-zA-Z0-9]+)*',
   cwlTestParameterFilePath: '^\\/([^\\/?:*\\|<>]+\\/)*[^\\/?:*\\|<>]+.(json|yml|yaml)$',
   wdlTestParameterFilePath: '^\\/([^\\/?:*\\|<>]+\\/)*[^\\/?:*\\|<>]+.(json|yml|yaml)$',