diff --git a/test/data_members.cpp b/test/data_members.cpp
index 4657fe6d..e4eacf17 100644
--- a/test/data_members.cpp
+++ b/test/data_members.cpp
@@ -7,6 +7,11 @@
 #include <boost/python/module.hpp>
 #include "test_class.hpp"
 
+#if defined(_AIX) && defined(__EDG_VERSION__) && __EDG_VERSION__ < 245
+# include <iostream> // works around a KCC intermediate code generation bug
+#endif
+
+
 using namespace boost::python;
 
 typedef test_class<> X;
diff --git a/test/minimal.cpp b/test/minimal.cpp
index 07bbb394..d76922bf 100644
--- a/test/minimal.cpp
+++ b/test/minimal.cpp
@@ -5,6 +5,10 @@
 // to its suitability for any purpose.
 #include <boost/python/module.hpp>
 
+#if defined(_AIX) && defined(__EDG_VERSION__) && __EDG_VERSION__ < 245
+# include <iostream> // works around a KCC intermediate code generation bug
+#endif
+
 BOOST_PYTHON_MODULE_INIT(minimal_ext)
 {
     boost::python::module m("minimal_ext");