diff --git a/framework/src/main/java/org/tron/core/services/jsonrpc/TronJsonRpcImpl.java b/framework/src/main/java/org/tron/core/services/jsonrpc/TronJsonRpcImpl.java
index 55bb167e771..4da6fe4b1e2 100644
--- a/framework/src/main/java/org/tron/core/services/jsonrpc/TronJsonRpcImpl.java
+++ b/framework/src/main/java/org/tron/core/services/jsonrpc/TronJsonRpcImpl.java
@@ -732,7 +732,7 @@ public String getCall(CallArguments transactionCall, Object blockParamObj)
         try {
           blockNumOrTag = paramMap.get("blockNumber");
         } catch (ClassCastException e) {
-          throw new JsonRpcInvalidRequestException(JSON_ERROR);
+          throw new JsonRpcInvalidParamsException(JSON_ERROR);
         }
 
         long blockNumber;
@@ -750,7 +750,7 @@ public String getCall(CallArguments transactionCall, Object blockParamObj)
         try {
           blockNumOrTag = paramMap.get("blockHash");
         } catch (ClassCastException e) {
-          throw new JsonRpcInvalidRequestException(JSON_ERROR);
+          throw new JsonRpcInvalidParamsException(JSON_ERROR);
         }
 
         if (getBlockByJsonHash(blockNumOrTag) == null) {