diff --git a/src/mme/mme_context.c b/src/mme/mme_context.c
index 144d1039c..69af3f513 100644
--- a/src/mme/mme_context.c
+++ b/src/mme/mme_context.c
@@ -2703,27 +2703,31 @@ status_t mme_m_tmsi_pool_generate()
 {
     status_t rv;
     int i, j;
+    int index = 0;
 
     d_trace(3, "M-TMSI Pool try to generate...\n");
-    for (i = 0; i < MAX_POOL_OF_UE; i++)
+    for (i = 0; index < MAX_POOL_OF_UE; i++)
     {
         mme_m_tmsi_t *m_tmsi = NULL;
         int conflict = 0;
 
-        m_tmsi = &self.m_tmsi.pool[i];
+        m_tmsi = &self.m_tmsi.pool[index];
         rv = core_generate_random_bytes((c_uint8_t *)m_tmsi, sizeof(*m_tmsi));
         d_assert(rv == CORE_OK, return CORE_ERROR, "Cannot generate random");
-        for (j = 0; j < i; j++)
+        for (j = 0; j < index; j++)
         {
             if (*m_tmsi == self.m_tmsi.pool[j])
             {
                 conflict = 1;
+                d_trace(3, "[M-TMSI CONFLICT]  %d:0x%x == %d:0x%x\n",
+                        index, *m_tmsi, j, self.m_tmsi.pool[j]);
                 break;
             }
         }
         if (conflict == 1) continue;
+        index++;
     }
-    self.m_tmsi.size = i;
+    self.m_tmsi.size = index;
     d_trace(3, "M-TMSI Pool generate...done\n");
 
     return CORE_OK;