diff --git a/interfaces/inner_api/syscap_interface.c b/interfaces/inner_api/syscap_interface.c
index e7e32bb..b71b4fa 100644
--- a/interfaces/inner_api/syscap_interface.c
+++ b/interfaces/inner_api/syscap_interface.c
@@ -512,6 +512,7 @@ char *DecodeRpcidToStringFormat(const char *inputFile)
     }
 
     PartSysCapAndOutBuffer(freeAfterDecodeRpcidInfo, outBuffer, priSyscapArray, sysCapArray);
+    priSyscapArray = NULL;
     return FreeAfterDecodeRpcidToString(freeAfterDecodeRpcidInfo, FREE_MALLOC_PRISYSCAP_AFTER_DECODE_RPCID, outBuffer);
 }