diff --git a/bin/delv/delv.c b/bin/delv/delv.c
index 182448a0b8..1fcfa6235d 100644
--- a/bin/delv/delv.c
+++ b/bin/delv/delv.c
@@ -1325,7 +1325,6 @@ dash_option(char *option, char *next, bool *open_type_class) {
 		case 'h':
 			usage();
 			exit(0);
-			UNREACHABLE();
 		case 'i':
 			no_sigs = true;
 			root_validation = false;
@@ -1336,7 +1335,6 @@ dash_option(char *option, char *next, bool *open_type_class) {
 		case 'v':
 			fprintf(stderr, "delv %s\n", PACKAGE_VERSION);
 			exit(0);
-			UNREACHABLE();
 		default:
 			UNREACHABLE();
 		}
diff --git a/bin/tests/wire_test.c b/bin/tests/wire_test.c
index 88bf3190d6..5dcc0951f7 100644
--- a/bin/tests/wire_test.c
+++ b/bin/tests/wire_test.c
@@ -58,7 +58,6 @@ fromhex(char c) {
 
 	fprintf(stderr, "bad input format: %02x\n", c);
 	exit(3);
-	UNREACHABLE();
 }
 
 static void
diff --git a/lib/dns/tests/dnstest.c b/lib/dns/tests/dnstest.c
index e3da9d4785..30b967dacb 100644
--- a/lib/dns/tests/dnstest.c
+++ b/lib/dns/tests/dnstest.c
@@ -372,7 +372,6 @@ fromhex(char c) {
 
 	printf("bad input format: %02x\n", c);
 	exit(3);
-	UNREACHABLE();
 }
 
 /*
diff --git a/lib/ns/tests/nstest.c b/lib/ns/tests/nstest.c
index a114dff963..601626cbc6 100644
--- a/lib/ns/tests/nstest.c
+++ b/lib/ns/tests/nstest.c
@@ -920,7 +920,6 @@ fromhex(char c) {
 
 	printf("bad input format: %02x\n", c);
 	exit(3);
-	UNREACHABLE();
 }
 
 isc_result_t