diff --git a/CHANGES b/CHANGES
index 04340af055..9ef76a4b88 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+4172.	[bug]		Named / named-checkconf didn't handle a view of CLASS0.
+			[RT #40265]
+
 4171.	[bug]		Fixed incorrect class checks in TSIG RR
 			implementation. [RT #40287]
 
diff --git a/bin/tests/system/checkconf/good-class.conf b/bin/tests/system/checkconf/good-class.conf
new file mode 100644
index 0000000000..ff2693eed5
--- /dev/null
+++ b/bin/tests/system/checkconf/good-class.conf
@@ -0,0 +1 @@
+view "example" class00 { };
diff --git a/lib/bind9/check.c b/lib/bind9/check.c
index e7a0200ca9..caf80d6a15 100644
--- a/lib/bind9/check.c
+++ b/lib/bind9/check.c
@@ -2898,6 +2898,7 @@ bind9_check_namedconf(const cfg_obj_t *config, isc_log_t *logctx,
 		dns_rdataclass_t vclass = dns_rdataclass_in;
 		const char *key = cfg_obj_asstring(vname);
 		isc_symvalue_t symvalue;
+		unsigned int symtype;
 
 		tresult = ISC_R_SUCCESS;
 		if (cfg_obj_isstring(vclassobj)) {
@@ -2911,16 +2912,17 @@ bind9_check_namedconf(const cfg_obj_t *config, isc_log_t *logctx,
 					    "view '%s': invalid class %s",
 					    cfg_obj_asstring(vname), r.base);
 		}
+		symtype = vclass + 1;
 		if (tresult == ISC_R_SUCCESS && symtab != NULL) {
 			symvalue.as_cpointer = view;
-			tresult = isc_symtab_define(symtab, key, vclass,
+			tresult = isc_symtab_define(symtab, key, symtype,
 						    symvalue,
 						    isc_symexists_reject);
 			if (tresult == ISC_R_EXISTS) {
 				const char *file;
 				unsigned int line;
 				RUNTIME_CHECK(isc_symtab_lookup(symtab, key,
-					   vclass, &symvalue) == ISC_R_SUCCESS);
+				         symtype, &symvalue) == ISC_R_SUCCESS);
 				file = cfg_obj_file(symvalue.as_cpointer);
 				line = cfg_obj_line(symvalue.as_cpointer);
 				cfg_obj_log(view, logctx, ISC_LOG_ERROR,