diff --git a/.ocamlformat b/.ocamlformat
new file mode 100644
index 0000000..2e68665
--- /dev/null
+++ b/.ocamlformat
@@ -0,0 +1,2 @@
+version = 0.15.0
+disable = true
diff --git a/lib/bindings/clock_stubs.c b/lib/bindings/clock_stubs.c
index 1d54f6e..809ed4d 100644
--- a/lib/bindings/clock_stubs.c
+++ b/lib/bindings/clock_stubs.c
@@ -39,3 +39,10 @@ caml_get_monotonic_time(value v_unit)
   CAMLparam1(v_unit);
   CAMLreturn(caml_copy_int64(solo5_clock_monotonic()));
 }
+
+CAMLprim value
+caml_get_wall_clock(value v_unit)
+{
+  CAMLparam1(v_unit);
+  CAMLreturn(caml_copy_int64(solo5_clock_wall()));
+}
diff --git a/lib/dune b/lib/dune
index ee3655b..300d6b2 100644
--- a/lib/dune
+++ b/lib/dune
@@ -5,17 +5,21 @@
  (libraries mirage-runtime bheap lwt cstruct metrics duration))
 
 (rule
- (deps (source_tree bindings))
+ (deps
+  (source_tree bindings))
  (target libmirage-solo5_bindings.a)
  (action
   (no-infer
    (progn
-    (chdir bindings (run %{make}))
+    (chdir
+     bindings
+     (run %{make}))
     (copy bindings/libmirage-solo5_bindings.a libmirage-solo5_bindings.a)))))
 
 (include_subdirs unqualified)
 
 (install
  (section lib)
- (files (bindings/mirage-solo5.pc as ../pkgconfig/mirage-solo5.pc)
-   libmirage-solo5_bindings.a))
\ No newline at end of file
+ (files
+  (bindings/mirage-solo5.pc as ../pkgconfig/mirage-solo5.pc)
+  libmirage-solo5_bindings.a))