diff --git a/src/image_modifications.hpp b/src/image_modifications.hpp
index 2cddfb824d5..37ff1a0c6af 100644
--- a/src/image_modifications.hpp
+++ b/src/image_modifications.hpp
@@ -184,7 +184,7 @@ class rotate_modification : public modification
 public:
 	/**
 	 * Constructor.
-	 * @pre @zoom >= @offset   Otherwise @return will have empty pixels.
+	 * @pre @zoom >= @offset   Otherwise the result will have empty pixels.
      * @pre @offset > 0        Otherwise the procedure will not return.
 	 * 
 	 * @param degrees Amount of rotation (in degrees).