diff --git a/cpukit/libtest/testextension.c b/cpukit/libtest/testextension.c
index bba6a53a75..483c13ca85 100644
--- a/cpukit/libtest/testextension.c
+++ b/cpukit/libtest/testextension.c
@@ -30,6 +30,7 @@
 #endif
 
 #include <rtems/test-info.h>
+#include <rtems/test-printer.h>
 #include <rtems/profiling.h>
 #include <rtems/bspIo.h>