--- a/configure.ac
+++ b/configure.ac
@@ -16,7 +16,7 @@
 AC_CHECK_HEADER([boost/thread.hpp],
 	[],
 	AC_MSG_ERROR([libboost-thread1.35-dev library is not installed.]))
-AC_CHECK_HEADER([openssl/ssl.h],
+PKG_CHECK_MODULES(openssl,openssl,
 	[],
 	AC_MSG_ERROR([openssl (libssl-dev) library not installed.]))
 AC_OUTPUT(Makefile)
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,6 +4,6 @@
 
 sslsniff_SOURCES = Bridge.hpp SSLConnectionManager.cpp FingerprintManager.hpp FirefoxAddonUpdater.hpp FirefoxUpdater.hpp HTTPSBridge.hpp Logger.hpp RawBridge.hpp SessionCache.hpp SSLBridge.hpp SSLConnectionManager.hpp sslsniff.hpp UpdateManager.hpp certificate/AuthorityCertificateManager.hpp certificate/Certificate.hpp certificate/CertificateManager.hpp certificate/TargetedCertificateManager.hpp http/HttpBridge.hpp http/HttpConnectionManager.hpp http/HttpHeaders.hpp http/OCSPDenier.hpp util/Destination.cpp util/Destination.hpp util/Util.hpp FirefoxUpdater.cpp Logger.cpp SessionCache.cpp SSLBridge.cpp HTTPSBridge.cpp sslsniff.cpp FingerprintManager.cpp certificate/AuthorityCertificateManager.cpp certificate/TargetedCertificateManager.cpp certificate/CertificateManager.cpp http/HttpBridge.cpp http/HttpConnectionManager.cpp http/HttpHeaders.cpp UpdateManager.cpp http/OCSPDenier.cpp FirefoxAddonUpdater.cpp
 
-sslsniff_LDADD = -lssl -lboost_filesystem -lpthread -lboost_thread -llog4cpp
+sslsniff_LDADD = $(openssl_LIBS) -lboost_system -lboost_filesystem -lpthread -lboost_thread -llog4cpp
 
 EXTRA_DIST = certs/wildcard IPSCACLASEA1.crt leafcert.pem updates/Darwin_Universal-gcc3.xml updates/Linux_x86-gcc3.xml updates/WINNT_x86-msvc.xml