diff --git a/jni/pjproject-android/pjlib/build/cacert.pem b/jni/pjproject-android/pjlib/build/cacert.pem
new file mode 100644
index 0000000..cfce092
--- /dev/null
+++ b/jni/pjproject-android/pjlib/build/cacert.pem
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----