diff --git a/src/jp2image.cpp b/src/jp2image.cpp
index f7eaaec8..72277fa9 100644
--- a/src/jp2image.cpp
+++ b/src/jp2image.cpp
@@ -653,7 +653,7 @@ namespace Exiv2
                     newlen = psize + iccProfile_.size_;
                 }
             } else {
-                ::memcpy(output.pData_s+outlen,boxBuf.pData_+inlen,subBox.length);
+                ::memcpy(output.pData_+outlen,boxBuf.pData_+inlen,subBox.length);
             }
 
             outlen += newlen;