diff --git a/lib/libomp/Makefile b/lib/libomp/Makefile
index 5814f20d0dfa..b78a07da2933 100644
--- a/lib/libomp/Makefile
+++ b/lib/libomp/Makefile
@@ -66,4 +66,6 @@ LDFLAGS+=	-Wl,-soname,libomp.so
 
 VERSION_MAP=	${OMPSRC}/exports_so.txt
 
+LIBADD+=	pthread
+
 .include <bsd.lib.mk>