diff --git a/pkgs/servers/http/pomerium/default.nix b/pkgs/servers/http/pomerium/default.nix
index 9cd49e98d984..c4d13ebe49bc 100644
--- a/pkgs/servers/http/pomerium/default.nix
+++ b/pkgs/servers/http/pomerium/default.nix
@@ -37,7 +37,7 @@ buildGoModule rec {
     buildPhase = ''
       runHook preBuild
       yarn --offline build
-      runHook postbuild
+      runHook postBuild
     '';
 
     installPhase = ''