diff --git a/openssl-act-engine/src/makefile.am b/openssl-act-engine/src/makefile.am
index d8cdfa6..630b843 100644
--- a/openssl-act-engine/src/makefile.am
+++ b/openssl-act-engine/src/makefile.am
@@ -18,7 +18,7 @@ noinst_HEADERS = actUtility.h CardKey.h CardObject.h CertificateList.h \
 libengine_act_la_SOURCES = engine_front.cpp engine_sct.cpp	   \
                            CardObject.cpp CardKey.cpp SlotList.cpp \
                            CertificateList.cpp SecOpGuard.cpp
-libengine_act_la_LDFLAGS = -version-info @LIB_VERSION@
+libengine_act_la_LDFLAGS = -version-info @LIB_VERSION@ -lact
 
 test_engine_SOURCES = test_engine.cpp
 test_engine_LDADD = -lssl