diff --git a/src/pki/commands/signcrl.c b/src/pki/commands/signcrl.c
index dfe1ce014..60d880eed 100644
--- a/src/pki/commands/signcrl.c
+++ b/src/pki/commands/signcrl.c
@@ -385,10 +385,6 @@ static int sign_crl()
 	}
 	else
 	{
-		if (!crl_serial.ptr)
-		{
-			crl_serial = chunk_from_chars(0x00);
-		}
 		lastenum = enumerator_create_empty();
 	}