diff --git a/pkgs/tools/admin/synapse-admin/default.nix b/pkgs/tools/admin/synapse-admin/default.nix
index 098cc57d97e7..2cde74ba4532 100644
--- a/pkgs/tools/admin/synapse-admin/default.nix
+++ b/pkgs/tools/admin/synapse-admin/default.nix
@@ -23,6 +23,9 @@ mkYarnPackage rec {
   NODE_ENV = "production";
   ${if baseUrl != null then "REACT_APP_SERVER" else null} = baseUrl;
 
+  # error:0308010C:digital envelope routines::unsupported
+  NODE_OPTIONS = "--openssl-legacy-provider";
+
   buildPhase = ''
     runHook preBuild