diff --git a/Makefile.am b/Makefile.am
index ccf8ee0..57ac38d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -132,8 +132,8 @@
   EXTRA_DIST = src/security/identity/osx-private-key-storage.cpp
 endif
 
-libndn_cpp_la_LIBADD  = @OPENSSL_LIBS@ @CRYPTOPP_LIBS@ @OSX_SECURITY_LIBS@
-libndn_cpp_la_LDFLAGS = @OPENSSL_LDFLAGS@  @CRYPTOPP_LDFLAGS@ @SQLITE3_LDFLAGS@ @BOOST_LDFLAGS@
-libndn_cpp_la_CFLAGS  = @OPENSSL_INCLUDES@ @CRYPTOPP_INCLUDES@ @SQLITE3_CFLAGS@  @BOOST_CPPFLAGS@
+libndn_cpp_la_LIBADD  = @OPENSSL_LIBS@     @CRYPTOPP_LIBS@     @OSX_SECURITY_LIBS@  @BOOST_SYSTEM_LIB@
+libndn_cpp_la_LDFLAGS = @OPENSSL_LDFLAGS@  @CRYPTOPP_LDFLAGS@  @SQLITE3_LDFLAGS@    @BOOST_LDFLAGS@
+libndn_cpp_la_CFLAGS  = @OPENSSL_INCLUDES@ @CRYPTOPP_INCLUDES@ @SQLITE3_CFLAGS@     @BOOST_CPPFLAGS@
 
 dist_noinst_SCRIPTS = autogen.sh