diff --git a/eap_example/Makefile b/eap_example/Makefile
index 86e505193..d2213462b 100644
--- a/eap_example/Makefile
+++ b/eap_example/Makefile
@@ -34,6 +34,7 @@ OBJS_both += ../src/utils/wpabuf.o
 OBJS_both += ../src/crypto/rc4.o
 OBJS_both += ../src/crypto/md4-internal.o
 OBJS_both += ../src/crypto/sha1.o
+OBJS_both += ../src/crypto/sha1-tlsprf.o
 OBJS_both += ../src/crypto/aes-cbc.o
 OBJS_both += ../src/crypto/aes-ctr.o
 OBJS_both += ../src/crypto/aes-eax.o