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-rw-r--r--src/libexpr/parser.y4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index e4b220e04fb8..f5c3435e5f45 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -123,7 +123,7 @@ static void freeAndUnprotect(void * p)
 %type <t> expr_app expr_select expr_simple bind inheritsrc formal
 %type <ts> binds ids expr_list formals string_parts
 %token <t> ID INT STR PATH URI
-%token IF THEN ELSE ASSERT WITH LET REC INHERIT EQ NEQ AND OR IMPL
+%token IF THEN ELSE ASSERT WITH LET IN REC INHERIT EQ NEQ AND OR IMPL
 %token DOLLAR_CURLY /* == ${ */
 
 %nonassoc IMPL
@@ -152,6 +152,8 @@ expr_function
     { $$ = makeAssert($2, $4, CUR_POS); }
   | WITH expr ';' expr_function
     { $$ = makeWith($2, $4, CUR_POS); }
+  | LET binds IN expr_function
+    { $$ = makeSelect(fixAttrs(1, ATinsert($2, makeBind(toATerm("<let-body>"), $4, CUR_POS))), toATerm("<let-body>")); }
   | expr_if
   ;