diff --git a/binaries/data/mods/public/gui/session/unit_actions.js b/binaries/data/mods/public/gui/session/unit_actions.js
index b07d76a0c2..5327abfac3 100644
--- a/binaries/data/mods/public/gui/session/unit_actions.js
+++ b/binaries/data/mods/public/gui/session/unit_actions.js
@@ -523,7 +523,7 @@ var unitActions =
 				data.resourceType = resourceType;
 				data.resourceTemplate = targetState.template;
 			}
-			else if (targetState.foundation && entState.builder)
+			else if (targetState.foundation && playerCheck(entState, targetState, ["Ally"]))
 			{
 				data.command = "build";
 				data.target = targetState.id;