diff --git a/tutorial/ex3/CMakeLists.txt b/tutorial/ex3/CMakeLists.txt
index 447a9a5f87611014c35c6e2d39a9a2cd45e45bb0..84908c7b4fa2fde4e6ce25f7a66e4147e0a73ae1 100644
--- a/tutorial/ex3/CMakeLists.txt
+++ b/tutorial/ex3/CMakeLists.txt
@@ -1,8 +1,6 @@
 # executables for exercise part a & b
-dune_add_test(NAME ex3_a
-              SOURCES ex3_a.cc)
-dune_add_test(NAME ex3_b
-              SOURCES ex3_b.cc)
+# dune_add_test(NAME ex3_a SOURCES ex3_a.cc)
+# dune_add_test(NAME ex3_b SOURCES ex3_b.cc)
 
 # add a symlink for the input file
 dune_symlink_to_source_files(FILES "ex3_a.input" "ex3_b.input")