diff --git a/test/fuzz/fuzz-netdev-parser/directives.netdev b/test/fuzz/fuzz-netdev-parser/directives.netdev
index 5aa5e9283d..56d4183472 100644
--- a/test/fuzz/fuzz-netdev-parser/directives.netdev
+++ b/test/fuzz/fuzz-netdev-parser/directives.netdev
@@ -177,7 +177,7 @@ SessionId=
 PeerSessionId=
 Layer2SpecificHeader=
 Name=
-[MACSEC]
+[MACsec]
 Port=
 Encrypt=
 [MACsecReceiveAssociation]
diff --git a/test/fuzz/fuzz-network-parser/directives.network b/test/fuzz/fuzz-network-parser/directives.network
index fd3256e784..ee49baa955 100644
--- a/test/fuzz/fuzz-network-parser/directives.network
+++ b/test/fuzz/fuzz-network-parser/directives.network
@@ -177,7 +177,7 @@ Managed=
 OtherInformation=
 [Neighbor]
 Address=
-MacAddress=
+MACAddress=
 [IPv6AddressLabel]
 Label=
 Prefix=