diff --git a/exercise/4-Classification.tex b/exercise/4-Classification.tex
index efbe73a..836b555 100644
--- a/exercise/4-Classification.tex
+++ b/exercise/4-Classification.tex
@@ -1,5 +1,3 @@
-\def\solutionsflag{}
-
 \documentclass[
 english,
 smallborders