diff --git a/configure.ac b/configure.ac
index ee42dbe..92b9b73 100644
--- a/configure.ac
+++ b/configure.ac
@@ -37,7 +37,10 @@
     AX_APPEND_COMPILE_FLAGS([-Wall -Werror], [CXXFLAGS])
 
     # Checks for header files.
+    old_CPPFLAGS="$CPPFLAGS"
+    CPPFLAGS="$SDBUSPLUS_CFLAGS $CPPFLAGS"
     AC_CHECK_HEADER(sdbusplus/server.hpp, ,[AC_MSG_ERROR([Could not find sdbusplus/server.hpp...sdbusplus package required])])
+    CPPFLAGS="$old_CPPFLAGS"
 
     # Checks for library functions.
     LT_INIT([dlopen disable-static shared])