diff --git a/heapdump13.md b/heapdump13.md
index 474926d2..442920e8 100644
--- a/heapdump13.md
+++ b/heapdump13.md
@@ -1,6 +1,7 @@
 Heap dump format for other versions:
 
-  * [[heapdump14]]
+  * Go 1.4: [[heapdump14]]
+  * Go 1.5 and later: [[heapdump15]]
 
 # Introduction