diff --git a/package/erlang-p1-stringprep/erlang-p1-stringprep.hash b/package/erlang-p1-stringprep/erlang-p1-stringprep.hash
new file mode 100644
index 0000000000..23bc6fbdce
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+++ b/package/erlang-p1-stringprep/erlang-p1-stringprep.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 5a74277e7bfb18b8f35838fa78fcde83f0acdb5b2a5b90c4b6d2470a33f7911e erlang-p1-stringprep-1.0.0.tar.gz