diff --git a/pkgs/by-name/et/etlegacy-unwrapped/package.nix b/pkgs/by-name/et/etlegacy-unwrapped/package.nix
index eacd38703062..73b9e82e8e6e 100644
--- a/pkgs/by-name/et/etlegacy-unwrapped/package.nix
+++ b/pkgs/by-name/et/etlegacy-unwrapped/package.nix
@@ -34,7 +34,7 @@ let
     else if stdenv.hostPlatform.isAarch64 then
       "aarch64"
     else if stdenv.hostPlatform.isi686 then
-      "386"
+      "i386"
     else
       throw "Unsupported architecture: ${stdenv.hostPlatform.system}";
 in
diff --git a/pkgs/by-name/et/etlegacy/package.nix b/pkgs/by-name/et/etlegacy/package.nix
index b420c87e66a7..28d3f0aff364 100644
--- a/pkgs/by-name/et/etlegacy/package.nix
+++ b/pkgs/by-name/et/etlegacy/package.nix
@@ -14,7 +14,7 @@ let
     else if stdenv.hostPlatform.isAarch64 then
       "aarch64"
     else if stdenv.hostPlatform.isi686 then
-      "386"
+      "i386"
     else
       throw "Unsupported architecture: ${stdenv.hostPlatform.system}";
 in