diff --git a/examples/custom-utop/dune b/examples/custom-utop/dune
index 3da237b..e20eac7 100644
--- a/examples/custom-utop/dune
+++ b/examples/custom-utop/dune
@@ -1,5 +1,4 @@
 (executable
  (name myutop)
- (flags :standard -safe-string)
  (link_flags -linkall)
  (libraries utop))
diff --git a/examples/interact/dune b/examples/interact/dune
index 335158a..07cc6b2 100644
--- a/examples/interact/dune
+++ b/examples/interact/dune
@@ -1,5 +1,4 @@
 (executable
  (name test_program)
- (flags :standard -safe-string)
  (link_flags -linkall)
  (libraries utop))
diff --git a/src/lib/dune b/src/lib/dune
index acd4b65..b197180 100644
--- a/src/lib/dune
+++ b/src/lib/dune
@@ -2,7 +2,6 @@
  (name uTop)
  (public_name utop)
  (wrapped false)
- (flags :standard -safe-string)
  (modes byte)
  (libraries compiler-libs.toplevel findlib.top lambda-term logs.lwt threads zed)
  (preprocess
diff --git a/src/top/dune b/src/top/dune
index 668581d..af7d175 100644
--- a/src/top/dune
+++ b/src/top/dune
@@ -1,7 +1,6 @@
 (executables
  (names utop)
  (libraries utop)
- (flags :standard -safe-string)
  (modes byte)
  (link_flags -linkall))
 
diff --git a/src/top/expunge/dune b/src/top/expunge/dune
index b354c7a..4d6bf78 100644
--- a/src/top/expunge/dune
+++ b/src/top/expunge/dune
@@ -1,4 +1,3 @@
 (executable
  (name expunge)
- (flags :standard -safe-string)
  (libraries unix))