diff --git a/lib/interface.py b/lib/interface.py
index b82cfaef..d7887004 100644
--- a/lib/interface.py
+++ b/lib/interface.py
@@ -326,6 +326,8 @@ class Interface(threading.Thread):
                 dercert = s.getpeercert(True)
                 s.close()
                 cert = ssl.DER_cert_to_PEM_cert(dercert)
+                # workaround android bug
+                cert = cert.replace("==-----END CERTIFICATE-----", "==\n-----END CERTIFICATE-----")
                 temporary_path = cert_path + '.temp'
                 with open(temporary_path,"w") as f:
                     f.write(cert)