1 files changed, 2 insertions, 2 deletions
diff --git a/flang/runtime/assign.cpp b/flang/runtime/assign.cpp
index 88f5500588bf..9e10e2f491ed 100644
--- a/flang/runtime/assign.cpp
+++ b/flang/runtime/assign.cpp
@@ -129,9 +129,9 @@ static void MaximalByteOffsetRange(
     if (extent > 0) {
       auto sm{dim.ByteStride()};
       if (sm < 0) {
-        least += extent * sm;
+        least += (extent - 1) * sm;
       } else {
-        most += extent * sm;
+        most += (extent - 1) * sm;
       }
     }
   }