diff --git a/src/api/c++/z3++.h b/src/api/c++/z3++.h
index 41f3f0e06..2200874d3 100644
--- a/src/api/c++/z3++.h
+++ b/src/api/c++/z3++.h
@@ -140,7 +140,7 @@ namespace z3 {
     class context {
         bool       m_enable_exceptions;
         Z3_context m_ctx;
-        static void __cdecl error_handler(Z3_context /*c*/, Z3_error_code /*e*/) { /* do nothing */ }
+        static void Z3_API error_handler(Z3_context /*c*/, Z3_error_code /*e*/) { /* do nothing */ }
         void init(config & c) {
             m_ctx = Z3_mk_context_rc(c);
             m_enable_exceptions = true;