diff --git a/src/wren_compiler.c b/src/wren_compiler.c
index 2256644e..ebedf614 100644
--- a/src/wren_compiler.c
+++ b/src/wren_compiler.c
@@ -2019,9 +2019,9 @@ GrammarRule rules[] =
   /* TOKEN_PERCENT       */ INFIX_OPERATOR(PREC_TERM, "% "),
   /* TOKEN_PLUS          */ INFIX_OPERATOR(PREC_TERM, "+ "),
   /* TOKEN_MINUS         */ OPERATOR("- "),
-  /* TOKEN_PIPE          */ UNUSED,
+  /* TOKEN_PIPE          */ INFIX_OPERATOR(PREC_BITWISE, "| "),
   /* TOKEN_PIPEPIPE      */ INFIX(PREC_LOGIC, or),
-  /* TOKEN_AMP           */ UNUSED,
+  /* TOKEN_AMP           */ INFIX_OPERATOR(PREC_BITWISE, "& "),
   /* TOKEN_AMPAMP        */ INFIX(PREC_LOGIC, and),
   /* TOKEN_BANG          */ PREFIX_OPERATOR("!"),
   /* TOKEN_TILDE         */ PREFIX_OPERATOR("~"),
diff --git a/test/method/operators.wren b/test/method/operators.wren
index 48fa74dd..d7df4710 100644
--- a/test/method/operators.wren
+++ b/test/method/operators.wren
@@ -10,6 +10,8 @@ class Foo {
   >= other { return "infix >= " + other }
   == other { return "infix == " + other }
   != other { return "infix != " + other }
+  & other { return "infix & " + other }
+  | other { return "infix | " + other }
 
   ! { return "prefix !" }
   - { return "prefix -" }
@@ -27,5 +29,7 @@ IO.print(foo <= "a") // expect: infix <= a
 IO.print(foo >= "a") // expect: infix >= a
 IO.print(foo == "a") // expect: infix == a
 IO.print(foo != "a") // expect: infix != a
+IO.print(foo & "a") // expect: infix & a
+IO.print(foo | "a") // expect: infix | a
 IO.print(!foo) // expect: prefix !
 IO.print(-foo) // expect: prefix -