diff --git a/src/runtime/sys_openbsd.go b/src/runtime/sys_openbsd.go
index 2d41ed0d46..fcddf4d6a5 100644
--- a/src/runtime/sys_openbsd.go
+++ b/src/runtime/sys_openbsd.go
@@ -57,3 +57,4 @@ func pthread_create_trampoline()
 //go:cgo_import_dynamic libc_pthread_sigmask pthread_sigmask "libpthread.so"
 
 //go:cgo_import_dynamic _ _ "libpthread.so"
+//go:cgo_import_dynamic _ _ "libc.so"