diff --git a/lib/c_glib/test/testthrifttestclient.cpp b/lib/c_glib/test/testthrifttestclient.cpp
index b8d9309..77daf3d 100644
--- a/lib/c_glib/test/testthrifttestclient.cpp
+++ b/lib/c_glib/test/testthrifttestclient.cpp
@@ -19,6 +19,12 @@
 
 /* test a C client with a C++ server  (that makes sense...) */
 
+#include <thrift/config.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>