diff --git a/flang/runtime/unit.cpp b/flang/runtime/unit.cpp
--- a/flang/runtime/unit.cpp
+++ b/flang/runtime/unit.cpp
@@ -640,6 +640,7 @@
   } else {
     SetPosition(0, handler);
     currentRecordNumber = 1;
+    leftTabLimit.reset();
   }
 }