diff --git a/include/libpsl.h b/include/libpsl.h
index 9a7c934..349e88c 100644
--- a/include/libpsl.h
+++ b/include/libpsl.h
@@ -53,7 +53,7 @@ void
 psl_ctx_t *
 	psl_load_file(const char *fname);
 int
-	psl_is_tld(const psl_ctx_t *psl, const char *domain);
+	psl_is_public(const psl_ctx_t *psl, const char *domain);
 
 /* does not include exceptions */
 int
diff --git a/src/psl.c b/src/psl.c
index 88ccc9e..2b31f81 100644
--- a/src/psl.c
+++ b/src/psl.c
@@ -210,7 +210,7 @@ static void _suffix_init(_psl_entry_t *suffix, const char *rule, size_t length)
 	*dst = 0;
 }
 
-int psl_is_tld(const psl_ctx_t *psl, const char *domain)
+int psl_is_public(const psl_ctx_t *psl, const char *domain)
 {
 	_psl_entry_t suffix, *rule;
 	const char *p, *label_bak;
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 8f5c810..f6d6f11 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -4,11 +4,11 @@ AM_CPPFLAGS = -Wno-missing-field-initializers -I$(top_srcdir)/include
 AM_LDFLAGS = -static
 LDADD = ../src/libpsl-@LIBPSL_API_VERSION@.la
 
-PSL_TESTS = test-is-tld
+PSL_TESTS = test-is-public
 
 check_PROGRAMS = $(PSL_TESTS)
 
-test_is_tld_SOURCES = test-is-tld.c
+test_is_tld_SOURCES = test-is-public.c
 test_is_tld_LDADD = ../src/libpsl-@LIBPSL_API_VERSION@.la
 
 TESTS_ENVIRONMENT = TESTS_VALGRIND="@VALGRIND_ENVIRONMENT@"
diff --git a/tests/test-is-tld.c b/tests/test-is-public.c
similarity index 98%
rename from tests/test-is-tld.c
rename to tests/test-is-public.c
index 1868af0..1bfdc6b 100644
--- a/tests/test-is-tld.c
+++ b/tests/test-is-public.c
@@ -69,7 +69,7 @@ static void test_psl(void)
 
 	for (it = 0; it < countof(test_data); it++) {
 		const struct test_data *t = &test_data[it];
-		int result = psl_is_tld(psl, t->domain);
+		int result = psl_is_public(psl, t->domain);
 
 		if (result == t->result) {
 			ok++;