diff --git a/src/snnUtil.jl b/src/snnUtil.jl
index 95eaf23..d831ef9 100644
--- a/src/snnUtil.jl
+++ b/src/snnUtil.jl
@@ -4,6 +4,7 @@ export  refractoryStatus!, addNewSynapticConn!, mergeLearnWeight!, growRepeatedP
         weakenNotMatureSynapse!, pruneSynapse!, rewireSynapse!
 
 using Random, GeneralUtils
+using ..type
 
 #------------------------------------------------------------------------------------------------100
 
@@ -167,7 +168,7 @@ function rewireSynapse!(wRec::AbstractArray, neuronInactivityCounter::AbstractAr
                         zitCumulative::AbstractArray)
     _,_,i3,i4 = size(wRec)                  
     for n in 1:i3   # neuron-by-neuron
-        if neuronInactivityCounter[1,1,n,i4][1] < -10000     # neuron die i.e. reset all weight
+        if neuronInactivityCounter[1,1,n,i4][1] < -100000     # neuron die i.e. reset all weight
             println("neuron $n die")
             neuronInactivityCounter[:,:,n,i4] .= 0     # reset
             w = random_wRec(i1,i2,1,synapseConnectionNumber)