diff --git a/openbsc/src/nat/bsc_nat_utils.c b/openbsc/src/nat/bsc_nat_utils.c
index b345a77..b45f447 100644
--- a/openbsc/src/nat/bsc_nat_utils.c
+++ b/openbsc/src/nat/bsc_nat_utils.c
@@ -785,9 +785,9 @@
 		regex_t reg;
 		regmatch_t matches[2];
 
-		if (entry->mcc[0] == '*' || strncmp(entry->mcc, imsi, 3) != 0)
+		if (entry->mcc[0] != '*' && strncmp(entry->mcc, imsi, 3) != 0)
 			continue;
-		if (entry->mnc[0] == '*' || strncmp(entry->mnc, imsi + 3, 2) != 0)
+		if (entry->mnc[0] != '*' && strncmp(entry->mnc, imsi + 3, 2) != 0)
 			continue;
 
 		if (entry->text[0] == '+') {