1 files changed, 2 insertions, 1 deletions
diff --git a/libqpdf/JSON.cc b/libqpdf/JSON.cc
index c9816809..28f451a9 100644
--- a/libqpdf/JSON.cc
+++ b/libqpdf/JSON.cc
@@ -1246,7 +1246,8 @@ JSONParser::handleToken()
         break;
 
     default:
-        throw std::logic_error("JSONParser::handleToken : non-terminal lexer state encountered");
+        throw std::runtime_error(
+            "JSON: offset " + std::to_string(offset) + ": premature end of input");
         break;
     }