diff --git a/src/makefile.am b/src/makefile.am
index 808d54e..d531704 100644
--- a/src/makefile.am
+++ b/src/makefile.am
@@ -31,8 +31,9 @@ lib_LTLIBRARIES = libcryptoki++.la
 
 libcryptoki___la_SOURCES = cryptoki.cxx cryptoki.hxx pcsc.cxx	\
                            version.cxx openssl-engine.cxx
-libcryptoki___la_LIBADD =
+libcryptoki___la_LIBADD = -lssl -lcrypto
 if !MINGW32
+libcryptoki___la_LIBADD += -ldl
 if !MAC
 libcryptoki___la_LIBADD += -lpcsclite
 endif