diff --git a/test161/tests/coremap/coremap-loose.t b/test161/tests/coremap/coremap-loose.t
index cecc378..062b62b 100644
--- a/test161/tests/coremap/coremap-loose.t
+++ b/test161/tests/coremap/coremap-loose.t
@@ -7,9 +7,5 @@ tags: [coremap]
 depends: [not-dumbvm.t]
 sys161:
   ram: 4M
-  disk1:
-    bytes: 8M
-  disk2:
-    bytes: 8M
 ---
 | km5 --avail 32 --kernel 125
diff --git a/test161/tests/coremap/coremap-tight.t b/test161/tests/coremap/coremap-tight.t
index 92f33a7..2d5fc4f 100644
--- a/test161/tests/coremap/coremap-tight.t
+++ b/test161/tests/coremap/coremap-tight.t
@@ -7,9 +7,5 @@ tags: [coremap]
 depends: [not-dumbvm.t]
 sys161:
   ram: 4M
-  disk1:
-    bytes: 8M
-  disk2:
-    bytes: 8M
 ---
 | km5 --avail 20 --kernel 105
diff --git a/test161/tests/coremap/not-dumbvm.t b/test161/tests/coremap/not-dumbvm.t
index 5bc0417..b882536 100644
--- a/test161/tests/coremap/not-dumbvm.t
+++ b/test161/tests/coremap/not-dumbvm.t
@@ -3,7 +3,7 @@ name: "Smarter VM"
 description:
   Test whether you are using dumbvm by allocating and freeing all physical
   memory multiple times.
-tags: [coremap]
+tags: [coremap, not-dumbvm]
 depends: [boot]
 ---
 | km5