diff --git a/dyndomain b/dyndomain
index 9162b1d..0482313 100755
--- a/dyndomain
+++ b/dyndomain
@@ -68,7 +68,7 @@ def load_conf():
 
 
 def ping(hostname):
-    cmd = "ping -c1 -w3 %s" % hostname
+    cmd = "ping -4 -c1 -w3 %s" % hostname
     ret = subprocess.run(cmd.split(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     return 0 if ret.returncode else 1