diff --git a/.travis.yml b/.travis.yml
index ceed310..fc5e261 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -31,6 +31,17 @@ matrix:
       env:
         - CXX_COMPILER=g++-8 CC_COMPILER=gcc-8
 
+    - os: linux
+      compiler: g++
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+          packages:
+            - g++-9
+      env:
+        - CXX_COMPILER=g++-9 CC_COMPILER=gcc-9
+
     - os: linux
       compiler: clang++
       addons:
diff --git a/include/nameof.hpp b/include/nameof.hpp
index 20be299..fc2890a 100644
--- a/include/nameof.hpp
+++ b/include/nameof.hpp
@@ -168,8 +168,10 @@ template <typename E, E V>
 #elif defined(__GNUC__)
   std::string_view name{__PRETTY_FUNCTION__};
   constexpr auto prefix = sizeof("constexpr std::string_view nameof::detail::nameof_enum_impl() [with E = ") + nameof_type_impl<identity<E>>().length() + sizeof("; V = ");
+#  if __GNUC__ < 9
   constexpr auto suffix = sizeof("; std::string_view = std::basic_string_view<char>]") - 1;
   name.remove_prefix(prefix);
+#  endif
 #elif defined(_MSC_VER)
   std::string_view name{__FUNCSIG__};
   constexpr auto suffix = sizeof(">(void) noexcept") - 1;
@@ -179,7 +181,7 @@ template <typename E, E V>
 
 #if defined(__clang__) || defined(__GNUC__) || defined(_MSC_VER)
   name.remove_suffix(suffix);
-#  if defined(__clang__) || defined(_MSC_VER)
+#  if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 9) || defined(_MSC_VER)
   for (std::size_t i = name.size(); i > 0; --i) {
     if (!is_name_char(name[i - 1])) {
       name.remove_prefix(i);
diff --git a/test/test.cpp b/test/test.cpp
index c0c7bea..0d89a9d 100644
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -212,7 +212,7 @@ TEST_CASE("NAMEOF_RAW") {
 TEST_CASE("NAMEOF_ENUM") {
   Color color_ = Color::BLUE;
   Color m[3] = {Color::RED, Color::GREEN, Color::BLUE};
-#if defined(__clang__) || defined(_MSC_VER)
+#if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 9) || defined(_MSC_VER)
   REQUIRE(NAMEOF_ENUM(Color::RED) == "RED");
   REQUIRE(NAMEOF_ENUM(color) == "RED");
 
@@ -240,7 +240,7 @@ TEST_CASE("NAMEOF_ENUM") {
 TEST_CASE("nameof::nameof_enum<T>(value)") {
   Color color_ = Color::BLUE;
   Color m[3] = {Color::RED, Color::GREEN, Color::BLUE};
-#if defined(__clang__) || defined(_MSC_VER)
+#if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 9) || defined(_MSC_VER)
   REQUIRE(nameof::nameof_enum(Color::RED) == "RED");
   REQUIRE(nameof::nameof_enum(color) == "RED");
 
@@ -268,7 +268,7 @@ TEST_CASE("nameof::nameof_enum<T>(value)") {
 TEST_CASE("nameof::nameof_enum<value>()") {
   constexpr Color color_ = Color::BLUE;
   constexpr Color m[3] = {Color::RED, Color::GREEN, Color::BLUE};
-#if defined(__clang__) || defined(_MSC_VER)
+#if defined(__clang__) || (defined(__GNUC__) && __GNUC__ >= 9) || defined(_MSC_VER)
   REQUIRE(nameof::nameof_enum<Color::RED>() == "RED");
   REQUIRE(nameof::nameof_enum<color>() == "RED");