diff --git a/internal/firewall/iptables/kernel.go b/internal/firewall/iptables/kernel.go
index 60e08514..a7ed2fea 100644
--- a/internal/firewall/iptables/kernel.go
+++ b/internal/firewall/iptables/kernel.go
@@ -27,7 +27,7 @@ func newKernelModules() kernelModules {
 		"nf_reject_ipv4":       &m.nfRejectIPv4,
 		"xt_connmark":          &m.xtConnmark,
 		"xt_conntrack":         &m.xtConntrack,
-		"xt_reject":            &m.xtReject,
+		"xt_REJECT":            &m.xtReject,
 	}
 	for name, fieldPtr := range nameToFieldPtr {
 		fieldPtr.name = name
diff --git a/internal/mod/configgz_linux.go b/internal/mod/configgz_linux.go
index a8a932e6..54c30404 100644
--- a/internal/mod/configgz_linux.go
+++ b/internal/mod/configgz_linux.go
@@ -92,12 +92,12 @@ func moduleNameToKernelFeatureGroups(moduleName string) (featureGroups [][]strin
 		"nf_reject_ipv4":       {{"CONFIG_NF_REJECT_IPV4"}},
 
 		// Common Netfilter Targets
-		"xt_log": {{"CONFIG_NETFILTER_XT_TARGET_LOG"}},
-		"xt_reject": {
+		"xt_LOG": {{"CONFIG_NETFILTER_XT_TARGET_LOG"}},
+		"xt_REJECT": {
 			{"CONFIG_IP_NF_TARGET_REJECT", "CONFIG_NF_REJECT_IPV4"},
 			{"CONFIG_NETFILTER_XT_TARGET_REJECT", "CONFIG_NF_REJECT_IPV4"},
 		},
-		"xt_masquerade": {{"CONFIG_NETFILTER_XT_TARGET_MASQUERADE"}},
+		"xt_MASQUERADE": {{"CONFIG_NETFILTER_XT_TARGET_MASQUERADE"}},
 
 		// Additional Netfilter Matches
 		"xt_addrtype":  {{"CONFIG_NETFILTER_XT_MATCH_ADDRTYPE"}},