diff --git a/fast64_internal/sm64/sm64_texscroll.py b/fast64_internal/sm64/sm64_texscroll.py
index ad7836de5..01d4d83b8 100644
--- a/fast64_internal/sm64/sm64_texscroll.py
+++ b/fast64_internal/sm64/sm64_texscroll.py
@@ -81,7 +81,11 @@ def writeSegmentROMTable(baseDir):
     # Add extern definition of segment table
     write_or_delete_if_found(
         Path(baseDir) / "src/game/memory.h",
-        [ModifyFoundDescriptor("uintptr_t sSegmentROMTable[32];", r"uintptr_t\h*sSegmentROMTable\[.*?\]\h?;")],
+        [
+            ModifyFoundDescriptor(
+                "extern uintptr_t sSegmentROMTable[32];", r"extern\h*uintptr_t\h*sSegmentROMTable\[.*?\]\h?;"
+            )
+        ],
         path_must_exist=True,
         footer=END_IF_FOOTER,
     )