diff --git a/tools/cert_create/Makefile b/tools/cert_create/Makefile
index eac8cec..a4bd76f 100644
--- a/tools/cert_create/Makefile
+++ b/tools/cert_create/Makefile
@@ -33,6 +33,7 @@
 V		:= 0
 DEBUG		:= 0
 BINARY		:= ${PROJECT}
+OPENSSL_DIR	:= /usr
 
 OBJECTS := src/cert.o \
            src/ext.o \
@@ -69,8 +70,8 @@
 
 # Make soft links and include from local directory otherwise wrong headers
 # could get pulled in from firmware tree.
-INC_DIR := -I ./include -I ${PLAT_INCLUDE}
-LIB_DIR :=
+INC_DIR := -I ./include -I ${PLAT_INCLUDE} -I ${OPENSSL_DIR}/include
+LIB_DIR := -L ${OPENSSL_DIR}/lib
 LIB := -lssl -lcrypto
 
 CC := gcc