diff --git a/draft-irtf-cfrg-vdaf.md b/draft-irtf-cfrg-vdaf.md
index 57df1505..b0ef3953 100644
--- a/draft-irtf-cfrg-vdaf.md
+++ b/draft-irtf-cfrg-vdaf.md
@@ -897,7 +897,7 @@ Some common functionalities:
 
 ~~~ aasvg
                  +--------------+
-           +---->| Aggregator 0 |----+
+           +---->| Aggregator 0 +----+
      input |     +--------------+    | aggregate
     shares |             ^           | shares
            |             |           |
@@ -3598,15 +3598,15 @@ def verifier_len(self) -> int:
 ~~~ aasvg
 +--------------------+
 | prove()            |
-|  +-------------+   |
+|  +--------------+  |
 |  | Valid        |<----- meas
 |  |  +--------+  |<----- joint rand
 |  |  | Gadget |  |  |<-- prove rand
-|  |  +-------+   |  |
+|  |  +--------+  |  |
 |  |              |  |
 |  +--------------+  |
 |                    |
-+-+-----------------+
++-+------------------+
   |
   v proof
 ~~~
@@ -3680,15 +3680,15 @@ def prove(self,
            |
 +----------|---------+
 | query()  |         |
-|  +-------|-----+   |
+|  +-------|------+  |
 |  | Valid |      |<----- meas (share)
 |  |  +----v---+  |<----- joint rand
 |  |  | Gadget |  |  |<-- query rand
-|  |  +-------+   |  |
+|  |  +--------+  |  |
 |  |              |  |
 |  +--------------+  |
 |                    |
-+-+-----------------+
++-+------------------+
   |
   v verifier (share)
 ~~~~