diff --git a/vm/Config.openbsd b/vm/Config.openbsd
index 8724ebf378..240adf8087 100644
--- a/vm/Config.openbsd
+++ b/vm/Config.openbsd
@@ -2,4 +2,4 @@ include vm/Config.unix
 PLAF_DLL_OBJS += vm/os-genunix.o vm/os-openbsd.o
 CC = egcc
 CFLAGS += -export-dynamic
-LIBS = -L/usr/local/lib/ -lm $(X11_UI_LIBS)
+LIBS = -L/usr/local/lib/ -lm $(X11_UI_LIBS) -lz