diff --git a/src/Network.cpp b/src/Network.cpp
index 2e4833b..2004d8b 100644
--- a/src/Network.cpp
+++ b/src/Network.cpp
@@ -124,24 +124,24 @@ const char *Network::getNetworkRTName(char *network_name){
     int network_name_len = strlen(network_name);
     char *RTName = (char *)malloc((network_name_len + 9)*sizeof(char));
     if (fp16){
-        strcat(RTName, network_name);
+        strcpy(RTName, network_name);
         strcat(RTName, "_fp16.rt");
         RTName[network_name_len + 7] = '\0';
     }
     else if (dla){
-        strcat(RTName, network_name);
+        strcpy(RTName, network_name);
         strcat(RTName, "_dla.rt");
         RTName[network_name_len + 6] = '\0';
     }
         
     else if (int8){
-        strcat(RTName, network_name);
+        strcpy(RTName, network_name);
         strcat(RTName, "_int8.rt");
         RTName[network_name_len + 8] = '\0';
     }
         
     else{
-        strcat(RTName, network_name);
+        strcpy(RTName, network_name);
         strcat(RTName, "_fp32.rt");
         RTName[network_name_len + 8] = '\0';
     }