diff --git a/include/boost/container/throw_exception.hpp b/include/boost/container/throw_exception.hpp
index 5922fa5..1b6eec1 100644
--- a/include/boost/container/throw_exception.hpp
+++ b/include/boost/container/throw_exception.hpp
@@ -60,7 +60,7 @@ namespace container {
    inline void throw_out_of_range(const char* str)
    {
       const char msg[] = "boost::container out_of_range thrown";
-      (void)msg;
+      (void)msg; (void)str;
       BOOST_ASSERT_MSG(!msg, str);
       std::abort();
    }
@@ -68,7 +68,7 @@ namespace container {
    inline void throw_length_error(const char* str)
    {
       const char msg[] = "boost::container length_error thrown";
-      (void)msg;
+      (void)msg; (void)str;
       BOOST_ASSERT_MSG(!msg, str);
       std::abort();
    }
@@ -76,7 +76,7 @@ namespace container {
    inline void throw_logic_error(const char* str)
    {
       const char msg[] = "boost::container logic_error thrown";
-      (void)msg;
+      (void)msg; (void)str;
       BOOST_ASSERT_MSG(!msg, str);
       std::abort();
    }
@@ -84,7 +84,7 @@ namespace container {
    inline void throw_runtime_error(const char* str)
    {
       const char msg[] = "boost::container runtime_error thrown";
-      (void)msg;
+      (void)msg; (void)str;
       BOOST_ASSERT_MSG(!msg, str);
       std::abort();
    }