diff --git a/include/magic_enum/magic_enum_containers.hpp b/include/magic_enum/magic_enum_containers.hpp
index e2a873773..ccf0f0ed3 100644
--- a/include/magic_enum/magic_enum_containers.hpp
+++ b/include/magic_enum/magic_enum_containers.hpp
@@ -982,7 +982,7 @@ class set {
 
   constexpr size_type erase(const key_type& key) noexcept {
     typename container_type::reference ref = a[key];
-    bool res = ref;
+    bool res = static_cast<bool>(ref);
     if (res) {
       --s;
     }
diff --git a/test/test_containers.cpp b/test/test_containers.cpp
index 30d1e7390..1250bdaed 100644
--- a/test/test_containers.cpp
+++ b/test/test_containers.cpp
@@ -270,6 +270,12 @@ TEST_CASE("containers_set") {
   REQUIRE_FALSE(color_set.empty());
   REQUIRE(color_set.size() == 3);
   REQUIRE(magic_enum::enum_count<Color>() == color_set.size());
+  color_set.erase(Color::RED);
+  color_set.erase(Color::GREEN);
+  REQUIRE(magic_enum::enum_count<Color>() - 2 == color_set.size());
+  REQUIRE(color_set.count(Color::RED) == 0);
+  REQUIRE_FALSE(color_set.contains(Color::GREEN));
+  REQUIRE(color_set.contains(Color::BLUE));
 
   auto color_set_compare = magic_enum::containers::set<Color>();
   color_set_compare.insert(Color::BLUE);