diff --git a/lib/libkse/support/Makefile.inc b/lib/libkse/support/Makefile.inc
index 0b7e0598fb58..956667fdef7d 100644
--- a/lib/libkse/support/Makefile.inc
+++ b/lib/libkse/support/Makefile.inc
@@ -9,6 +9,7 @@ SYSCALLS= clock_gettime \
 	kse_create \
 	kse_exit \
 	kse_release \
+	kse_switchin \
 	kse_thr_interrupt \
 	kse_wakeup \
 	sigaction \
diff --git a/lib/libkse/support/thr_support.c b/lib/libkse/support/thr_support.c
index ad40fec879e4..2956e07a5d6b 100644
--- a/lib/libkse/support/thr_support.c
+++ b/lib/libkse/support/thr_support.c
@@ -40,6 +40,7 @@ __strong_reference(kse_wakeup, _thr_kse_wakeup);
 __strong_reference(kse_create, _thr_kse_create);
 __strong_reference(kse_thr_interrupt, _thr_kse_thr_interrupt);
 __strong_reference(kse_release, _thr_kse_release);
+__strong_reference(kse_switchin, _thr_kse_switchin);
 
 __strong_reference(sigaction, _thr_sigaction);
 __strong_reference(sigprocmask, _thr_sigprocmask);
diff --git a/lib/libpthread/support/Makefile.inc b/lib/libpthread/support/Makefile.inc
index 0b7e0598fb58..956667fdef7d 100644
--- a/lib/libpthread/support/Makefile.inc
+++ b/lib/libpthread/support/Makefile.inc
@@ -9,6 +9,7 @@ SYSCALLS= clock_gettime \
 	kse_create \
 	kse_exit \
 	kse_release \
+	kse_switchin \
 	kse_thr_interrupt \
 	kse_wakeup \
 	sigaction \
diff --git a/lib/libpthread/support/thr_support.c b/lib/libpthread/support/thr_support.c
index ad40fec879e4..2956e07a5d6b 100644
--- a/lib/libpthread/support/thr_support.c
+++ b/lib/libpthread/support/thr_support.c
@@ -40,6 +40,7 @@ __strong_reference(kse_wakeup, _thr_kse_wakeup);
 __strong_reference(kse_create, _thr_kse_create);
 __strong_reference(kse_thr_interrupt, _thr_kse_thr_interrupt);
 __strong_reference(kse_release, _thr_kse_release);
+__strong_reference(kse_switchin, _thr_kse_switchin);
 
 __strong_reference(sigaction, _thr_sigaction);
 __strong_reference(sigprocmask, _thr_sigprocmask);