diff --git a/src/python/flowmetal/parser.py b/src/python/flowmetal/parser.py
index f85cd3a..bd0ff16 100644
--- a/src/python/flowmetal/parser.py
+++ b/src/python/flowmetal/parser.py
@@ -265,8 +265,12 @@ class Parser(SexpParser):
             acc = []
             while f.peek() != closec:
                 if not f.peek():
-                    raise SyntaxError(f"Got end of file ({f.pos()}) while parsing {openc!r}...{closec!r} starting at {pos}")
-                acc.append(cls.parse(rtb))
+                    raise SyntaxError(f"Got end of file while parsing {openc!r}...{closec!r} starting at {pos}")
+                try:
+                    acc.append(cls.parse(rtb))
+                except SyntaxError as e:
+                    raise SyntaxError(f"While parsing {openc!r}...{closec!r} starting at {pos},\n{e}")
+
             assert rtb.read() == closec  # Discard the trailing delimeter
             return ctor(acc, str(rtb), pos)