diff --git a/cardcomm/pkcs11/src/Makefile.am b/cardcomm/pkcs11/src/Makefile.am
--- a/cardcomm/pkcs11/src/Makefile.am
+++ b/cardcomm/pkcs11/src/Makefile.am
@@ -4,7 +4,7 @@ AM_CXXFLAGS = -Wall -Wextra -Wno-unused-parameter
 libbeidpkcs11_la_CFLAGS = $(AM_CFLAGS) -DLTC_NO_ASM
 libbeidpkcs11_la_CXXFLAGS = $(AM_CXXFLAGS) -DUSING_DL_OPEN -DEIDMW_CAL_EXPORT -DCAL_BEID -DCARDPLUGIN_IN_CAL -DBEID_35 -DNDEBUG -DBEID_OLD_PINPAD -DLTC_NO_ASM -fvisibility=hidden -I$(srcdir)/common -I$(srcdir)/cardlayer -I$(top_srcdir)/doc/sdk/include/rsaref220 @PCSC_CFLAGS@
 libbeidpkcs11_la_CPPFLAGS = -I$(srcdir)/common -I$(srcdir)/cardlayer -I$(top_srcdir)/doc/sdk/include/rsaref220 @PCSC_CFLAGS@ -DLIBEXECDIR='"$(libexecdir)"'
-libbeidpkcs11_la_LIBADD = @PCSC_LIBS@ @DL_LIBS@
+libbeidpkcs11_la_LIBADD = @PCSC_LIBS@ @DL_LIBS@ -lpthread
 libbeidpkcs11_la_SOURCES = \
 	asn1.c \
 	cal.cpp \
diff --git a/plugins_tools/eid-viewer/Makefile.am b/plugins_tools/eid-viewer/Makefile.am
--- a/plugins_tools/eid-viewer/Makefile.am
+++ b/plugins_tools/eid-viewer/Makefile.am
@@ -107,7 +107,7 @@ dist_eidvinclude_HEADERS = \
 	include/eid-viewer/macros.h
 
 eid_viewer_LDADD = @GTK_LIBS@ @GIO_LIBS@ @SSL_LIBS@ @XML2_LIBS@ @CURL_LIBS@ @libproxy_LIBS@ $(top_builddir)/plugins_tools/util/liblabels.la libeidviewer.la
-libeidviewer_la_LIBADD = $(top_builddir)/plugins_tools/util/liblabels.la $(top_builddir)/cardcomm/pkcs11/src/libbeidpkcs11.la @SSL_LIBS@ @XML2_LIBS@
+libeidviewer_la_LIBADD = $(top_builddir)/plugins_tools/util/liblabels.la $(top_builddir)/cardcomm/pkcs11/src/libbeidpkcs11.la @SSL_LIBS@ @XML2_LIBS@ -lpthread
 libeidviewer_la_LDFLAGS = -version-info 1:0:1
 AM_CFLAGS = @GTK_CFLAGS@ -I. -I$(srcdir)/include -Igtk -DDATAROOTDIR='"$(datarootdir)"' -I$(top_srcdir)/doc/sdk/include/rsaref220 -I$(top_srcdir)/plugins_tools/util @SSL_CFLAGS@ @GIO_CFLAGS@ @XML2_CFLAGS@ @CURL_CFLAGS@ @libproxy_CFLAGS@ -fvisibility=hidden
 AM_CXXFLAGS = $(AM_CFLAGS)