diff --git a/compiler/global/static.ml b/compiler/global/static.ml
index 1560142..f9f3ffa 100644
--- a/compiler/global/static.ml
+++ b/compiler/global/static.ml
@@ -101,6 +101,7 @@ let apply_op partial loc op se_list =
       | "~~", [Sint n] -> Sint (lnot n)
       | "~-.", [Sfloat f] -> Sfloat (-. f)
       | "&&&", [Sint n1; Sint n2] -> Sint (n1 land n2)
+      | "|||", [Sint n1; Sint n2] -> Sint (n1 lor n2)
       | f,_ -> Misc.internal_error ("Static evaluation failed of the pervasive operator "^f)
   )
   else ( (* symbolic evaluation *)
diff --git a/compiler/obc/c/cgen.ml b/compiler/obc/c/cgen.ml
index 46c1f6f..42993a3 100644
--- a/compiler/obc/c/cgen.ml
+++ b/compiler/obc/c/cgen.ml
@@ -109,7 +109,7 @@ let copname = function
   | "+." -> "+" | "-." -> "-" | "<"  -> "<" | ">"  -> ">" | "<=" -> "<="
   | ">=" -> ">=" | "<=." -> "<=" | "<." -> "<" | ">=." -> ">=" | ">." -> ">"
   | "~-" -> "-" | "not" -> "!" | "%" -> "%"
-  | ">>>" -> ">>" | "<<<" -> "<<" | "&&&" -> "&"
+  | ">>>" -> ">>" | "<<<" -> "<<" | "&&&" -> "&" | "|||" -> "|"
   | op   -> op
 
 (** Translates an Obc var_dec to a tuple (name, cty). *)
@@ -274,7 +274,7 @@ and cop_of_op_aux op_name cexps = match op_name with
               "=" | "<>"
             | "&" | "or"
             | "+" | "-" | "*" | "/"
-            | "*." | "/." | "+." | "-." | "%" | "<<<" | ">>>" | "&&&"
+            | "*." | "/." | "+." | "-." | "%" | "<<<" | ">>>" | "&&&" | "|||"
             | "<" | ">" | "<=" | ">=" | "<=." | "<." | ">=." | ">."), [el;er] ->
               Cbop (copname op, el, er)
           | _ -> Cfun_call(op, cexps)
diff --git a/compiler/obc/java/java_printer.ml b/compiler/obc/java/java_printer.ml
index ca10fb4..050ca83 100644
--- a/compiler/obc/java/java_printer.ml
+++ b/compiler/obc/java/java_printer.ml
@@ -117,6 +117,7 @@ and op ff (f, e_l) =
     | "<<<" -> "<<"
     | ">>>" -> ">>"
     | "&&&" -> "&"
+    | "|||" -> "|"
     | op   -> op
   in
   match Names.modul f with
diff --git a/lib/pervasives.epi b/lib/pervasives.epi
index 8b48063..5c79c50 100644
--- a/lib/pervasives.epi
+++ b/lib/pervasives.epi
@@ -31,6 +31,7 @@ val fun (~~)(int) returns (int)
 val fun (>>>)(int;int) returns (int)
 val fun (<<<)(int;int) returns (int)
 val fun (&&&)(int;int) returns (int)
+val fun (|||)(int;int) returns (int)
 val fun (~-.)(float) returns (float)
 val fun do_stuff(int) returns (int)
 val fun between(int;int) returns (int)