diff --git a/lib/system/syslocks.nim b/lib/system/syslocks.nim
index 1695deca13..c3e23052b7 100644
--- a/lib/system/syslocks.nim
+++ b/lib/system/syslocks.nim
@@ -121,3 +121,5 @@ else:
       importc: "pthread_cond_signal", header: "<pthread.h>", noSideEffect.}
     proc deinitSysCond(cond: var SysCond) {.noSideEffect,
       importc: "pthread_cond_destroy", header: "<pthread.h>".}
+
+{.pop.}