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-rw-r--r--src/hostmask.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/hostmask.c b/src/hostmask.c
index 014d1be..9e1e70d 100644
--- a/src/hostmask.c
+++ b/src/hostmask.c
@@ -642,7 +642,7 @@ add_conf_by_address(const unsigned int type, struct MaskItem *conf)
int bits = 0;
struct AddressRec *arec = NULL;
- assert(type && hostname);
+ assert(type && !EmptyString(hostname));
arec = MyMalloc(sizeof(struct AddressRec));
arec->masktype = parse_netmask(hostname, &arec->Mask.ipa.addr, &bits);