diff --git a/ui-ngx/src/app/shared/models/regex.constants.ts b/ui-ngx/src/app/shared/models/regex.constants.ts
index f78d492d96..b8b1be4e83 100644
--- a/ui-ngx/src/app/shared/models/regex.constants.ts
+++ b/ui-ngx/src/app/shared/models/regex.constants.ts
@@ -16,6 +16,6 @@
 
 export const oneSpaceInsideRegex = /^\s*\S+(?:\s\S+)*\s*$/;
 
-export const charsWithNumRegex = /^[a-zA-Z]+[a-zA-Z0-9]*$/;
+export const charsWithNumRegex = /^[a-zA-Z_]+[a-zA-Z0-9_]*$/;
 
 export const digitsRegex = /^\d*$/;