diff --git a/Resources/Changelog/Parts/window.yml b/Resources/Changelog/Parts/window.yml
new file mode 100644
index 0000000000..d903719a18
--- /dev/null
+++ b/Resources/Changelog/Parts/window.yml
@@ -0,0 +1,4 @@
+author: Zumorica
+changes:
+  - type: Fix # One of the following: Add, Remove, Tweak, Fix
+    message: Fix not being able to build windows on top of grilles.
diff --git a/Resources/Prototypes/Recipes/Construction/structures.yml b/Resources/Prototypes/Recipes/Construction/structures.yml
index 0dd5840d3e..4831d2350d 100644
--- a/Resources/Prototypes/Recipes/Construction/structures.yml
+++ b/Resources/Prototypes/Recipes/Construction/structures.yml
@@ -77,6 +77,7 @@
   targetNode: window
   category: Structures
   description: Clear.
+  canBuildInImpassable: true
   conditions:
     - !type:EmptyOrWindowValidInTile {}
     - !type:NoWindowsInTile {}
@@ -95,6 +96,7 @@
   targetNode: reinforcedWindow
   category: Structures
   description: Clear but tough.
+  canBuildInImpassable: true
   conditions:
     - !type:EmptyOrWindowValidInTile {}
     - !type:NoWindowsInTile {}
@@ -112,6 +114,7 @@
   startNode: start
   targetNode: plasmaWindow
   category: Structures
+  canBuildInImpassable: true
   description: Clear and even tougher, with a purple tint.
   conditions:
     - !type:EmptyOrWindowValidInTile {}
@@ -130,6 +133,7 @@
   startNode: start
   targetNode: reinforcedPlasmaWindow
   category: Structures
+  canBuildInImpassable: true
   description: Fire resistant and even tougher, with a purple tint.
   conditions:
     - !type:EmptyOrWindowValidInTile {}