diff --git a/src/Tools/readmap/src/lib.rs b/src/Tools/readmap/src/lib.rs
index 0151c99d..abde9b95 100644
--- a/src/Tools/readmap/src/lib.rs
+++ b/src/Tools/readmap/src/lib.rs
@@ -27,6 +27,9 @@ fn process<F: std::iter::Iterator<Item=String>>(mut line_iter:F) -> Result<Vec<S
         }
     }
 
+    sections.sort_by(|left, right| {
+        left.adr.cmp(&right.adr)
+    });
     Ok(sections)
 }