diff --git a/build-aux/syntax-check.mk b/build-aux/syntax-check.mk
index 3c196bdf68..e8f9a91cee 100644
--- a/build-aux/syntax-check.mk
+++ b/build-aux/syntax-check.mk
@@ -1325,7 +1325,7 @@ sc_prohibit_enum_impl_with_vir_prefix_in_virsh:
 ## Exceptions ##
 ## ---------- ##
 
-exclude_file_name_regexp--sc_avoid_strcase = ^tools/vsh\.h$$
+exclude_file_name_regexp--sc_avoid_strcase = ^tools/(vsh\.h|nss/libvirt_nss_(leases|macs)\.c)$$
 
 exclude_file_name_regexp--sc_avoid_write = ^src/libvirt-stream\.c$$
 
diff --git a/tests/nsstest.c b/tests/nsstest.c
index 2c2e57769b..a03f230452 100644
--- a/tests/nsstest.c
+++ b/tests/nsstest.c
@@ -173,6 +173,7 @@ mymain(void)
 # if !defined(LIBVIRT_NSS_GUEST)
     DO_TEST("fedora", AF_INET, "192.168.122.197", "192.168.122.198", "192.168.122.199", "192.168.122.3");
     DO_TEST("gentoo", AF_INET, "192.168.122.254");
+    DO_TEST("Gentoo", AF_INET, "192.168.122.254");
     DO_TEST("gentoo", AF_INET6, "2001:1234:dead:beef::2");
     DO_TEST("gentoo", AF_UNSPEC, "192.168.122.254");
     DO_TEST("non-existent", AF_UNSPEC, NULL);
diff --git a/tools/nss/libvirt_nss_leases.c b/tools/nss/libvirt_nss_leases.c
index 536fcf8608..770dae8625 100644
--- a/tools/nss/libvirt_nss_leases.c
+++ b/tools/nss/libvirt_nss_leases.c
@@ -272,7 +272,7 @@ findLeasesParserEndMap(void *ctx)
         }
     } else {
         DEBUG("Check name '%s' vs '%s'", parser->name, NULLSTR(parser->entry.hostname));
-        if (parser->entry.hostname && !strcmp(parser->name, parser->entry.hostname))
+        if (parser->entry.hostname && !strcasecmp(parser->name, parser->entry.hostname))
             found = true;
     }
     DEBUG("Found %d", found);
diff --git a/tools/nss/libvirt_nss_macs.c b/tools/nss/libvirt_nss_macs.c
index d4b165eef6..f45d149793 100644
--- a/tools/nss/libvirt_nss_macs.c
+++ b/tools/nss/libvirt_nss_macs.c
@@ -142,7 +142,7 @@ findMACsParserEndMap(void *ctx)
     if (parser->state != FIND_MACS_STATE_ENTRY)
         return 0;
 
-    if (!strcmp(parser->entry.name, parser->name)) {
+    if (!strcasecmp(parser->entry.name, parser->name)) {
         char **macs = realloc(*parser->macs,
                               sizeof(char *) * ((*parser->nmacs) + parser->entry.nmacs));
         if (!macs)