diff --git a/configure.ac b/configure.ac
index a4f407f..95d9ba8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,6 +23,7 @@
 )
 
 # Checks for libraries.
+AC_CHECK_LIB([pam], [pam_start], [], [AC_MSG_ERROR([libpam not found])])
 AC_CHECK_LIB([mapper], [mapper_get_service], ,[AC_MSG_ERROR([Could not find libmapper...openbmc/phosphor-objmgr package required])])
 PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221], [], [AC_MSG_ERROR(["systemd required and not found"])])
 PKG_CHECK_MODULES([CRYPTO], [libcrypto >= 1.0.2g], ,[AC_MSG_ERROR([can't find openssl libcrypto])])