LDAP user import PKIX path building failed

Just downloaded an evaluation of Filr to see if it would be a good fit for us. When attempting the ldap user import, it spits the message:

"com.ibm.jsse2.util.j: PKIX path building failed: java.security.cert.CertPathBuilderException: PKIXCertPathBuilderImpl could not build a valid CertPath.; internal cause is:
java.security.cert.CertPathValidatorException: The certificate issued by OU=Organizational CA, O=xxx_tree is not trusted; internal cause is:
java.security.cert.CertPathValidatorException: Certificate chaining error".

I am sure this is because our file server is using the default self signed certificate. Is there a way to make Filr recognize our file server's self signed certificate as trusted?

Thanks