diff --git a/config.c b/config.c
index aa2888d301..53ecb2f32d 100644
--- a/config.c
+++ b/config.c
@@ -2876,7 +2876,7 @@ static int matches(const char *key, const char *value,
 {
 	if (strcmp(key, store->key))
 		return 0; /* not ours */
-	if (store->fixed_value)
+	if (store->fixed_value && value)
 		return !strcmp(store->fixed_value, value);
 	if (!store->value_pattern)
 		return 1; /* always matches */
diff --git a/t/t1300-config.sh b/t/t1300-config.sh
index f1d42b62b0..127671aa3f 100755
--- a/t/t1300-config.sh
+++ b/t/t1300-config.sh
@@ -2434,6 +2434,15 @@ test_expect_success '--get and --get-all with --fixed-value' '
 	test_must_fail git config --file=config --get-regexp --fixed-value fixed+ non-existent
 '
 
+test_expect_success '--fixed-value with value-less configuration' '
+	test_when_finished rm -f config &&
+	cat >config <<-\EOF &&
+	[section]
+		key
+	EOF
+	git config --file=config --fixed-value section.key value pattern
+'
+
 test_expect_success 'includeIf.hasconfig:remote.*.url' '
 	git init hasremoteurlTest &&
 	test_when_finished "rm -rf hasremoteurlTest" &&