diff --git a/internal/httpclient/ssrf.go b/internal/httpclient/ssrf.go
index 201cab3..311e380 100644
--- a/internal/httpclient/ssrf.go
+++ b/internal/httpclient/ssrf.go
@@ -116,12 +116,8 @@ func matchAllowedHost(host, pattern string) bool {
 		return true
 	}
 
-	if strings.HasPrefix(pattern, "*.") {
-		pattern = pattern[2:]
-	}
-	if strings.HasPrefix(pattern, ".") {
-		pattern = pattern[1:]
-	}
+	pattern = strings.TrimPrefix(pattern, "*.")
+	pattern = strings.TrimPrefix(pattern, ".")
 
 	return host == pattern || strings.HasSuffix(host, "."+pattern)
 }