Index: src/game/g_buildable.c
===================================================================
--- src/game/g_buildable.c	(revision 823)
+++ src/game/g_buildable.c	(working copy)
@@ -2496,12 +2496,12 @@
         contents & CONTENTS_NOALIENBUILD || contents & CONTENTS_NOBUILD )
       reason = IBE_PERMISSION;
 
-    //look for a hivemind
+    //look for an Overmind
     for ( i = 1, tempent = g_entities + i; i < level.num_entities; i++, tempent++ )
     {
       if( tempent->s.eType != ET_BUILDABLE )
         continue;
-      if( tempent->s.modelindex == BA_A_OVERMIND && tempent->spawned )
+      if( tempent->s.modelindex == BA_A_OVERMIND && tempent->spawned && ( tempent->health > 0 ) )
         break;
     }