diff --git a/microstack/ILibParsers.c b/microstack/ILibParsers.c
index 0f72a3a..a289b91 100644
--- a/microstack/ILibParsers.c
+++ b/microstack/ILibParsers.c
@@ -3333,7 +3333,7 @@ void ILibChain_ReadEx2(void *chain, HANDLE h, OVERLAPPED *p, char *buffer, int b
 				state->handler = handler;
 				state->fileHandle = h;
 				state->user = user;
-				state->p = (void*)(uintptr_t)bufferLen;
+				state->p = (void*)(uintptr_t)bytesRead;
 
 				ILibChain_RunOnMicrostackThreadEx2(chain, ILibChain_ReadEx2_UnwindHandler, state, 1);
 			}