diff --git a/jedi/parser/representation.py b/jedi/parser/representation.py
index 3227d108..ecc7528a 100644
--- a/jedi/parser/representation.py
+++ b/jedi/parser/representation.py
@@ -1128,7 +1128,7 @@ isinstance(c, (tokenize.Token, Operator)) else unicode(c)
             elif tok_str == '.':
                 if result and isinstance(result[-1], StatementElement):
                     is_chain = True
-            elif tok_str == ',':  # implies a tuple
+            elif tok_str == ',' and result:  # implies a tuple
                 # expression is now an array not a statement anymore
                 stmt = Statement(self._sub_module, result, result[0].start_pos,
                                  tok.end_pos, self.parent, set_name_parents=False)
diff --git a/test/completion/invalid.py b/test/completion/invalid.py
index 18233c20..5d4a8004 100644
--- a/test/completion/invalid.py
+++ b/test/completion/invalid.py
@@ -168,7 +168,11 @@ invalid = .call
 #? str()
 invalid
 
-call = ''
 invalid = call?.call
 #? str()
 invalid
+
+# comma
+invalid = ,call
+#? str()
+invalid