diff --git a/src/main/resources/assets/computercraft/lua/rom/apis/window.lua b/src/main/resources/assets/computercraft/lua/rom/apis/window.lua
index 8ac9674dd..fb4820be8 100644
--- a/src/main/resources/assets/computercraft/lua/rom/apis/window.lua
+++ b/src/main/resources/assets/computercraft/lua/rom/apis/window.lua
@@ -388,14 +388,14 @@ function create( parent, nX, nY, nWidth, nHeight, bStartVisible )
         return nBackgroundColor
     end
 
-    function window.getLine( nY )
-        if type(nY) ~= "number" then expect(1, nY, "number") end
+    function window.getLine(y)
+        if type(y) ~= "number" then expect(1, y, "number") end
 
-        if nY < 1 or nY > nHeight then
-            error( "Line is out of range.", 2 )
+        if y < 1 or y > nHeight then
+            error("Line is out of range.", 2)
         end
 
-        return tLines[nY].text, tLines[nY].textColor, tLines[nY].backgroundColor
+        return tLines[y].text, tLines[y].textColor, tLines[y].backgroundColor
     end
 
     -- Other functions
diff --git a/src/test/resources/test-rom/spec/apis/window_spec.lua b/src/test/resources/test-rom/spec/apis/window_spec.lua
index b6102e841..2fb6d119d 100644
--- a/src/test/resources/test-rom/spec/apis/window_spec.lua
+++ b/src/test/resources/test-rom/spec/apis/window_spec.lua
@@ -130,5 +130,11 @@ describe("The window library", function()
             expect.error(w.getLine, 0):eq("Line is out of range.")
             expect.error(w.getLine, y + 1):eq("Line is out of range.")
         end)
+
+        it("provides a line's contents", function()
+            local w = mk()
+            w.blit("test", "aaaa", "4444")
+            expect({ w.getLine(1) }):same { "test ", "aaaa0", "4444f" }
+        end)
     end)
 end)