diff --git a/configure.ac b/configure.ac
index c1ef974..7a74c01 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,10 +17,11 @@
     [AC_MSG_ERROR([Could not find python-2.7 installed...python-2.7 is required])])
 
 # Checks for libraries.
-AC_CHECK_LIB([mapper], [mapper_get_service])
+AC_CHECK_LIB([mapper], [mapper_get_service],,\
+    [AC_MSG_ERROR([Could not find libmapper: phosphor-objmgr package required])])
 PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221])
 PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus],,\
-    AC_MSG_ERROR(["Requires sdbusplus package."]))
+    [AC_MSG_ERROR([Requires sdbusplus package.])])
 
 # Checks for header files.
 AC_CHECK_HEADER(systemd/sd-bus.h, ,[AC_MSG_ERROR([Could not find systemd/sd-bus.h...systemd development package required])])