diff --git a/testData/preferences/nyx.json b/testData/preferences/nyx.json
deleted file mode 100644
index ed370d66f..000000000
--- a/testData/preferences/nyx.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-    "flat": {
-        "name": "Nyx",
-        "contexts": {
-            "gpii-default": {
-                "name": "Default preferences",
-                "preferences": {
-                    "http://registry.gpii.net/common/nightScreen": true
-                }
-            }
-        }
-    }
-}
diff --git a/testData/preferences/nyx.json5 b/testData/preferences/nyx.json5
new file mode 100644
index 000000000..97bdbd39a
--- /dev/null
+++ b/testData/preferences/nyx.json5
@@ -0,0 +1,24 @@
+//# Nyx
+//
+//The preference set enables the night screen, reducing the blue from the screen.
+//
+//## Testing
+//
+//To see the results, a physical machine is required. When enabled, the blue is reduced (making white turn yellow).
+//
+//For a VM, search for "night light" in System Settings. The button will say `Turn on now` if this setting is disabled,
+//otherwise `Turn off now`.
+//
+{
+    "flat": {
+        "name": "Nyx",
+        "contexts": {
+            "gpii-default": {
+                "name": "Default preferences",
+                "preferences": {
+                    "http://registry.gpii.net/common/nightScreen": true
+                }
+            }
+        }
+    }
+}
diff --git a/testData/preferences/nyx.md b/testData/preferences/nyx.md
deleted file mode 100644
index fdfede725..000000000
--- a/testData/preferences/nyx.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# Nyx
-
-The preference set enables the night screen, reducing the blue from the screen.
-
-## Testing
-
-To see the results, a physical machine is required. When enabled, the blue is reduced (making white turn yellow).
-
-For a VM, search for "night light" in System Settings. The button will say `Turn on now` if this setting is disabled,
-otherwise `Turn off now`.
-