diff --git a/src/plugins/http/src/httpContext.c b/src/plugins/http/src/httpContext.c
index 6abd382f8e5a3ff75c1296cd5c4e2bea533ec53f..fb8ab48498fa48e38df5cbc1fda342ef8fcde130 100644
--- a/src/plugins/http/src/httpContext.c
+++ b/src/plugins/http/src/httpContext.c
@@ -130,7 +130,7 @@ HttpContext *httpCreateContext(int32_t fd) {
 
 HttpContext *httpGetContext(void *ptr) {
   uint64_t handleVal = (uint64_t)ptr;
-  HttpContext **ppContext = taosCacheAcquireByKey(tsHttpServer.contextCache, &handleVal, sizeof(HttpContext *));
+  HttpContext **ppContext = taosCacheAcquireByKey(tsHttpServer.contextCache, &handleVal, sizeof(uint64_t));
 
   if (ppContext) {
     HttpContext *pContext = *ppContext;