diff --git a/src/zr/infect.inc b/src/zr/infect.inc
index 81cd77e..3ea10bd 100644
--- a/src/zr/infect.inc
+++ b/src/zr/infect.inc
@@ -698,6 +698,7 @@ public Action:InfectMotherZombie(Handle:timer)
 
     // Infect players.
     new infected = 0;
+    new infected_human_to_zombie_failed = 0;
     while (infected < mothercount)
     {
         // Infect one of the main candidates.
@@ -759,6 +760,15 @@ public Action:InfectMotherZombie(Handle:timer)
                     {
                         infected++;
                     }
+                    else
+                    {
+                        infected_human_to_zombie_failed++;
+                        if (infected_human_to_zombie_failed > 100)
+                        {
+                            break; 
+                            //doing testround on dev server would cause script time execution, hence this was added.
+                        }
+                    }
                 }
                 else
                 {