diff --git a/pkgs/by-name/um/umami/package.nix b/pkgs/by-name/um/umami/package.nix
index d5a95c25f349..2ebc6b7a3550 100644
--- a/pkgs/by-name/um/umami/package.nix
+++ b/pkgs/by-name/um/umami/package.nix
@@ -9,6 +9,7 @@
   nodejs,
   fetchPnpmDeps,
   pnpmConfigHook,
+  pnpmBuildHook,
   pnpm_10,
   prisma_7,
   prisma-engines_7,
@@ -83,6 +84,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     makeWrapper
     nodejs
     pnpmConfigHook
+    pnpmBuildHook
     pnpm
   ];
 
@@ -135,14 +137,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   env.PRISMA_QUERY_ENGINE_LIBRARY = "${finalAttrs.passthru.prisma-engines}/lib/libquery_engine.node";
   env.PRISMA_SCHEMA_ENGINE_BINARY = "${finalAttrs.passthru.prisma-engines}/bin/schema-engine";
 
-  buildPhase = ''
-    runHook preBuild
-
-    pnpm build
-
-    runHook postBuild
-  '';
-
   checkPhase = ''
     runHook preCheck