diff --git a/splat.yaml b/splat.yaml
index f03dd6c..36e6973 100644
--- a/splat.yaml
+++ b/splat.yaml
@@ -139,7 +139,7 @@ segments:
       - [0x1B320, asm]
       - [0x1B360, asm]
       - [0x1B3A0, c, "_ob_electric_zephyr"]
-      - [0x1B3E0, c, "_ob_grumpy_island"]
+      - [0x1B3E0, c, "nu/nugfxthread"]
       - [0x1B510, c, "_ob_painful_roll"]
       - [0x1B530, asm]
       - [0x1B650, asm]
diff --git a/src/_ob_grumpy_island.c b/src/nu/nugfxthread.c
similarity index 100%
rename from src/_ob_grumpy_island.c
rename to src/nu/nugfxthread.c