diff --git a/src/core/jbuild b/src/core/jbuild
index 2c848845..1f988b34 100644
--- a/src/core/jbuild
+++ b/src/core/jbuild
@@ -5,5 +5,5 @@
    (wrapped false)
    (flags (:standard -w +a-4-42-44-48-50-58-32-60@8 -safe-string -nolabels -open CCMonomorphic))
    (ocamlopt_flags (:standard (:include ../flambda.flags)))
-   (libraries (bytes result uchar containers.monomorphic))
+   (libraries (result uchar containers.monomorphic))
   ))
diff --git a/src/data/jbuild b/src/data/jbuild
index 9fcf9861..3f5bf259 100644
--- a/src/data/jbuild
+++ b/src/data/jbuild
@@ -5,5 +5,5 @@
    (wrapped false)
    (flags (:standard -w +a-4-42-44-48-50-58-32-60@8 -safe-string))
    (ocamlopt_flags (:standard (:include ../flambda.flags)))
-   (libraries (bytes result))
+   (libraries (result))
   ))
diff --git a/src/iter/jbuild b/src/iter/jbuild
index bade997f..b2cab584 100644
--- a/src/iter/jbuild
+++ b/src/iter/jbuild
@@ -5,5 +5,5 @@
    (wrapped false)
    (flags (:standard -w +a-4-42-44-48-50-58-32-60@8 -safe-string))
    (ocamlopt_flags (:standard (:include ../flambda.flags)))
-   (libraries (bytes result))
+   (libraries (result))
   ))
diff --git a/src/sexp/jbuild b/src/sexp/jbuild
index b3c35302..743e3b30 100644
--- a/src/sexp/jbuild
+++ b/src/sexp/jbuild
@@ -5,7 +5,7 @@
    (wrapped false)
    (flags (:standard -w +a-4-42-44-48-50-58-32-60@8 -safe-string))
    (ocamlopt_flags (:standard (:include ../flambda.flags)))
-   (libraries (bytes result))
+   (libraries (result))
   ))
 
 (ocamllex (CCSexp_lex))
diff --git a/src/unix/jbuild b/src/unix/jbuild
index 6502a9d3..ef81a336 100644
--- a/src/unix/jbuild
+++ b/src/unix/jbuild
@@ -6,5 +6,5 @@
    (optional)
    (flags (:standard -w +a-4-42-44-48-50-58-32-60@8 -safe-string))
    (ocamlopt_flags (:standard (:include ../flambda.flags)))
-   (libraries (bytes result unix))
+   (libraries (result unix))
   ))