diff --git a/Resources/Prototypes/Entities/Buildings/computers.yml b/Resources/Prototypes/Entities/Buildings/computers.yml
index 4eb5de57f9..f50c04452a 100644
--- a/Resources/Prototypes/Entities/Buildings/computers.yml
+++ b/Resources/Prototypes/Entities/Buildings/computers.yml
@@ -18,6 +18,10 @@
       - MobImpassable
       - VaultImpassable
       - Opaque
+      mask:
+      - Impassable
+      - MobImpassable
+      - VaultImpassable
   - type: Icon
     sprite: Buildings/computer.rsi
     state: computer
diff --git a/Resources/Prototypes/Entities/Buildings/instruments.yml b/Resources/Prototypes/Entities/Buildings/instruments.yml
index b020d4cfc3..05deaefd08 100644
--- a/Resources/Prototypes/Entities/Buildings/instruments.yml
+++ b/Resources/Prototypes/Entities/Buildings/instruments.yml
@@ -41,6 +41,13 @@
      sprite: Objects/Instruments/otherinstruments.rsi
      state: piano
    - type: Anchorable
+   - type: Collidable
+     shapes:
+       - !type:PhysShapeAabb
+         mask:
+           - Impassable
+           - MobImpassable
+           - VaultImpassable
 
  - type: entity
    name: minimoog
diff --git a/Resources/Prototypes/Entities/Buildings/vending_machines.yml b/Resources/Prototypes/Entities/Buildings/vending_machines.yml
index 0b7bed5def..81a98d8023 100644
--- a/Resources/Prototypes/Entities/Buildings/vending_machines.yml
+++ b/Resources/Prototypes/Entities/Buildings/vending_machines.yml
@@ -20,6 +20,11 @@
     shapes:
     - !type:PhysShapeAabb
       bounds: "-0.5,-0.25,0.5,0.25"
+      mask:
+      - Impassable
+      - MobImpassable
+      - VaultImpassable
+      - SmallImpassable
       layer:
       - Opaque
       - Impassable