diff --git a/docs/ase-file-specs.md b/docs/ase-file-specs.md
index 92b6cffb3..29f84a17f 100644
--- a/docs/ase-file-specs.md
+++ b/docs/ase-file-specs.md
@@ -421,9 +421,16 @@ The data of this chunk is as follows:
             RECT
           + If type==0x0011 (vector)
             DWORD     Number of elements
-            WORD      Element's type
-            BYTE[]    As many values as the number of elements indicates
-                      Structure depends on the element's type
+            WORD      Element's type.
+            + If Element's type == 0 (all elements are not of the same type)
+              For each element:
+                WORD      Element's type
+                BYTE[]    Element's value. Structure depends on the
+                          element's type
+            + Else (all elements are of the same type)
+              For each element:
+                BYTE[]    Element's value. Structure depends on the
+                          element's type
           + If type==0x0012 (nested properties map)
             DWORD     Number of properties
             BYTE[]    Nested properties data