diff --git a/bin/modules/DomClassifier.py b/bin/modules/DomClassifier.py
index e7b77d26..063354a2 100755
--- a/bin/modules/DomClassifier.py
+++ b/bin/modules/DomClassifier.py
@@ -61,6 +61,8 @@ def compute(self, message, r_result=False):
 
             self.c.text(rawtext=host)
             print(self.c.domain)
+            if not self.c.domain:
+                return
             self.c.validdomain(passive_dns=True, extended=False)
             # self.logger.debug(self.c.vdomain)