diff --git a/pkg/detectors/browserstack/browserstack.go b/pkg/detectors/browserstack/browserstack.go
index ac7a270a6..de338703a 100644
--- a/pkg/detectors/browserstack/browserstack.go
+++ b/pkg/detectors/browserstack/browserstack.go
@@ -21,7 +21,7 @@ var (
 
 	// Make sure that your group is surrounded in boundary characters such as below to reduce false positives.
 	keyPat  = regexp.MustCompile(detectors.PrefixRegex([]string{"browserstack", "key", "automate", "local"}) + `\b([0-9a-zA-Z]{20})\b`)
-	userPat = regexp.MustCompile(detectors.PrefixRegex([]string{"browserstack", "user", "automate", "local"}) + `\b([a-zA-Z\d]+[._-]?){3,18}([a-zA-Z\d]+){6}\b`)
+	userPat = regexp.MustCompile(detectors.PrefixRegex([]string{"browserstack", "user", "automate", "local"}) + `\b([a-zA-Z\d]{3,18})[._-]?([a-zA-Z\d]){6}\b`)
 )
 
 // Keywords are used for efficiently pre-filtering chunks.