diff --git a/server-ce/test/helpers/project.ts b/server-ce/test/helpers/project.ts
index eb64bf37ce..e252649d67 100644
--- a/server-ce/test/helpers/project.ts
+++ b/server-ce/test/helpers/project.ts
@@ -141,6 +141,7 @@ export function getSpamSafeProjectName() {
     // Move from hex/16 to base64/64 possible characters per char in string
     const name = Buffer.from(uuid().replaceAll('-', ''), 'hex')
       .toString('base64')
+      .replace('/', '_')
       .slice(0, 10)
     const nDigits = (name.match(/\d/g) || []).length
     if (nDigits < 6) return name