diff --git a/build/fbcode_builder/getdeps/builder.py b/build/fbcode_builder/getdeps/builder.py
index da1b44a99..c69efc87f 100644
--- a/build/fbcode_builder/getdeps/builder.py
+++ b/build/fbcode_builder/getdeps/builder.py
@@ -952,6 +952,7 @@ class CargoBuilder(BuilderBase):
     def run_cargo(self, install_dirs, operation, args=None):
         args = args or []
         env = self._compute_env(install_dirs)
+        self.add_openssl_to_env(env, install_dirs)
         # Enable using nightly features with stable compiler
         env["RUSTC_BOOTSTRAP"] = "1"
         cmd = [
@@ -962,6 +963,17 @@ class CargoBuilder(BuilderBase):
         ] + args
         self._run_cmd(cmd, cwd=self.workspace_dir(), env=env)
 
+    def add_openssl_to_env(self, env, install_dirs):
+        openssl_candidates = [d for d in install_dirs if "openssl" in d]
+        if len(openssl_candidates) > 1:
+            raise Exception(
+                "Found more than one candidate for openssl directory: {}.".format(
+                    openssl_candidates
+                )
+            )
+        elif len(openssl_candidates) == 1:
+            env["OPENSSL_DIR"] = openssl_candidates[0]
+
     def build_source_dir(self):
         return os.path.join(self.build_dir, "source")
 
diff --git a/build/fbcode_builder/manifests/rust-shed b/build/fbcode_builder/manifests/rust-shed
index 0afb829f6..7cb2f027e 100644
--- a/build/fbcode_builder/manifests/rust-shed
+++ b/build/fbcode_builder/manifests/rust-shed
@@ -25,5 +25,13 @@ tools/rust/ossconfigs = .
 [dependencies]
 fbthrift
 
+# macOS doesn't expose the openssl api so we need to build our own.
+[dependencies.os=darwin]
+openssl
+
+# Windows doesn't have openssl, so we get to provide it
+[dependencies.os=windows]
+openssl
+
 [dependencies.fb=on]
 rust