CLion: no code compleition on remote host

When connecting to a remote host (I'm working with a Makefile project on a Linux server) and working on a remote C file I am unable to do any code completion/code analysis (no red underline when missing a semicolon, no ability to command+click, etc.). Re-syncing with remote appears to have no effects. Is there a setting I am missing? Such functionality is occurring when working with local files.