diff --git a/common.mk b/common.mk
index 5c749e1..4fb0ef8 100644
--- a/common.mk
+++ b/common.mk
@@ -109,7 +109,7 @@ ifeq ($(MCL_USE_GMP),1)
   GMP_LIB=-lgmp -lgmpxx
 endif
 ifeq ($(MCL_USE_OPENSSL),1)
-  OPENSSL_LIB=-lcrypto
+  OPENSSL_LIB=-L${OPENSSL_DIR}/lib -lcrypto
 endif
 LDFLAGS+=$(GMP_LIB) $(OPENSSL_LIB) $(BIT_OPT) $(LDFLAGS_USER)