diff --git a/mach/proto/fp/FP.script b/mach/proto/fp/FP.script
index a9fa23645..de2c407ed 100644
--- a/mach/proto/fp/FP.script
+++ b/mach/proto/fp/FP.script
@@ -28,7 +28,6 @@ g/_add_ext/s//.add_ext/g
 g/_div_ext/s//.div_ext/g
 g/_mul_ext/s//.mul_ext/g
 g/_nrm_ext/s//.nrm_ext/g
-g/_prt_ext/s//.prt_ext/g
 g/_sft_ext/s//.sft_ext/g
 g/_sub_ext/s//.sub_ext/g
 g/_zrf_ext/s//.zrf_ext/g