diff --git a/sysdeps/pthread/tst-cond23.c b/sysdeps/pthread/tst-cond23.c
index 30ebd677fb..ac79aac603 100644
--- a/sysdeps/pthread/tst-cond23.c
+++ b/sysdeps/pthread/tst-cond23.c
@@ -21,6 +21,7 @@
 #include <time.h>
 #include <unistd.h>
 
+#include <support/test-driver.h>
 
 #if defined _POSIX_CLOCK_SELECTION && _POSIX_CLOCK_SELECTION >= 0
 static int