diff --git a/nsprpub/pr/include/md/_netbsd.h b/nsprpub/pr/include/md/_netbsd.h
index e156cf95291..e3e7452c0cb 100644
--- a/nsprpub/pr/include/md/_netbsd.h
+++ b/nsprpub/pr/include/md/_netbsd.h
@@ -50,6 +50,8 @@
 #define _PR_HAVE_SOCKADDR_LEN
 #define _PR_NO_LARGE_FILES
 #define _PR_STAT_HAS_ST_ATIMESPEC
+#define _PR_HAVE_SYSV_SEMAPHORES
+#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
 
 #define USE_SETJMP