diff --git a/sec_mm/sec_omx/sec_codecs/video/mfc_c110/enc/src/SsbSipMfcEncAPI.c b/sec_mm/sec_omx/sec_codecs/video/mfc_c110/enc/src/SsbSipMfcEncAPI.c
index 88560fb..82f0bea 100644
--- a/sec_mm/sec_omx/sec_codecs/video/mfc_c110/enc/src/SsbSipMfcEncAPI.c
+++ b/sec_mm/sec_omx/sec_codecs/video/mfc_c110/enc/src/SsbSipMfcEncAPI.c
@@ -434,7 +434,7 @@ SSBSIP_MFC_ERROR_CODE SsbSipMfcEncClose(void *openHandle)
 
     pCTX->inter_buff_status = MFC_USE_NONE;
 
-    munmap((void *)pCTX->mapped_addr, MMAP_BUFFER_SIZE_MMAP);
+    munmap((void *)pCTX->mapped_addr, pCTX->mapped_size);
     close(pCTX->hMFC);
     free(pCTX);