diff --git a/test/error_category_test.cpp b/test/error_category_test.cpp
index 16154c8..a49cb51 100644
--- a/test/error_category_test.cpp
+++ b/test/error_category_test.cpp
@@ -8,6 +8,10 @@
 
 // See library home page at http://www.boost.org/libs/system
 
+#if defined(__GNUC__) && __GNUC__ >= 16
+# pragma GCC diagnostic ignored "-Wformat-truncation"
+#endif
+
 #include <boost/system/error_code.hpp>
 #include <boost/core/lightweight_test.hpp>
 #include <boost/core/snprintf.hpp>
diff --git a/test/error_category_test2.cpp b/test/error_category_test2.cpp
index 2a9644f..c3897e0 100644
--- a/test/error_category_test2.cpp
+++ b/test/error_category_test2.cpp
@@ -8,6 +8,10 @@
 
 // See library home page at http://www.boost.org/libs/system
 
+#if defined(__GNUC__) && __GNUC__ >= 16
+# pragma GCC diagnostic ignored "-Wformat-truncation"
+#endif
+
 #include <boost/system/error_category.hpp>
 #include <boost/core/lightweight_test.hpp>
 #include <boost/core/snprintf.hpp>