diff --git a/src/imageformats/rle_p.h b/src/imageformats/rle_p.h
index 04e795b..2aa6055 100644
--- a/src/imageformats/rle_p.h
+++ b/src/imageformats/rle_p.h
@@ -21,6 +21,8 @@
 #ifndef KIMAGEFORMATS_RLE_H
 #define KIMAGEFORMATS_RLE_H
 
+#include <QDebug>
+
 /**
  * The RLEVariant to use.
  *