diff --git a/Makefile b/Makefile
index 49402e6d1..7932e1d84 100644
--- a/Makefile
+++ b/Makefile
@@ -33,6 +33,7 @@ test: build
 
 clean:
 	dune clean
+	rm -fr _coverage_all _coverage_cli _coverage_ligo
 
 coverage: clean
 	BISECT_ENABLE=yes dune runtest --force
diff --git a/src/bin/expect_tests/dune b/src/bin/expect_tests/dune
index 97422faad..65504a168 100644
--- a/src/bin/expect_tests/dune
+++ b/src/bin/expect_tests/dune
@@ -2,5 +2,5 @@
  (name cli_expect_tests)
  (libraries simple-utils cli)
  (inline_tests (deps (source_tree ../../test/contracts)))
- (preprocess (pps ppx_let ppx_expect bisect_ppx --conditional))
+ (preprocess (pps ppx_let ppx_expect))
  (flags (:standard -open Simple_utils)))