diff --git a/uncompyle6/parsers/parse37.py b/uncompyle6/parsers/parse37.py
index dc2a63d8..c6cee373 100644
--- a/uncompyle6/parsers/parse37.py
+++ b/uncompyle6/parsers/parse37.py
@@ -110,13 +110,17 @@ class Python37Parser(Python36Parser):
         jf_cfs                     ::= JUMP_FORWARD come_froms
         ifelsestmt                 ::= testexpr c_stmts_opt jf_cfs else_suite opt_come_from_except
 
+        jmp_false37                ::= POP_JUMP_IF_FALSE COME_FROM
+        list_if                    ::= expr jmp_false37 list_iter
+
         _ifstmts_jump              ::= c_stmts_opt come_froms
 
         and_not                    ::= expr jmp_false expr POP_JUMP_IF_TRUE
 
-        expr                       ::= conditional37
-        conditional37              ::= and_not expr JUMP_FORWARD COME_FROM expr COME_FROM
-
+        expr                       ::= ifexp_37a
+        expr                       ::= ifexp_37b
+        ifexp_37a                  ::= and_not expr JUMP_FORWARD COME_FROM expr COME_FROM
+        ifexp_37b                  ::= expr jmp_false expr POP_JUMP_IF_FALSE jump_forward_else expr
         """
 
     def customize_grammar_rules(self, tokens, customize):
diff --git a/uncompyle6/semantics/customize37.py b/uncompyle6/semantics/customize37.py
index e0c67ced..13699c52 100644
--- a/uncompyle6/semantics/customize37.py
+++ b/uncompyle6/semantics/customize37.py
@@ -56,6 +56,7 @@ def customize_for_version37(self, version):
             (0, 19 ) ),
         'compare_chained2c_37': (
             '%[3]{pattr.replace("-", " ")} %p %p', (0, 19), (6, 19) ),
-        'conditional37': ( '%p if %p else %p', (1, 'expr', 27), (0, 27), (4, 'expr', 27) ),
+        'ifexp_37a': ( '%p if %p else %p', (1, 'expr', 27), (0, 27), (4, 'expr', 27) ),
+        'ifexp_37b': ( '%p if %p else %p', (2, 'expr', 27), (0, 'expr', 27), (5, 'expr', 27) ),
 
         })