diff --git a/openssl-act-engine/src/makefile.am b/openssl-act-engine/src/makefile.am
index 7540158..f3ee7c5 100644
--- a/openssl-act-engine/src/makefile.am
+++ b/openssl-act-engine/src/makefile.am
@@ -19,7 +19,7 @@ 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_LIBADD = -lact -pthread -ldl
+libengine_act_la_LIBADD = -lact -ldl
 
 test_engine_SOURCES = test_engine.cpp
 test_engine_LDADD = -lssl