diff --git a/src/plugins/imageformats/macjp2/qiiofhelpers.cpp b/src/plugins/imageformats/macjp2/qiiofhelpers.cpp
index 99903b08f778449aa58caa31db8f2e1a24c77430..c8949323930f22141c9eed27d1dde057ef571bfe 100644
--- a/src/plugins/imageformats/macjp2/qiiofhelpers.cpp
+++ b/src/plugins/imageformats/macjp2/qiiofhelpers.cpp
@@ -74,7 +74,7 @@ static off_t cbSkipForward(void *info, off_t count)
     } else {
         char *buf = new char[count];
         res = dev->read(buf, count);
-        delete buf;
+        delete[] buf;
     }
     return qMax(qint64(0), res);
 }