diff --git a/BUILD.gn b/BUILD.gn
index 988ca7e..d71002d 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -339,7 +339,6 @@
     "core/src/fxcodec/fx_libopenjpeg/src/fx_pi.c",
     "core/src/fxcodec/fx_libopenjpeg/src/fx_raw.c",
     "core/src/fxcodec/fx_libopenjpeg/src/fx_t1.c",
-    "core/src/fxcodec/fx_libopenjpeg/src/fx_t1_generate_luts.c",
     "core/src/fxcodec/fx_libopenjpeg/src/fx_t2.c",
     "core/src/fxcodec/fx_libopenjpeg/src/fx_tcd.c",
     "core/src/fxcodec/fx_libopenjpeg/src/fx_tgt.c",
diff --git a/pdfium.gyp b/pdfium.gyp
index 7b6ac0c..a09caa1 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -364,7 +364,6 @@
         'core/src/fxcodec/fx_libopenjpeg/src/fx_pi.c',
         'core/src/fxcodec/fx_libopenjpeg/src/fx_raw.c',
         'core/src/fxcodec/fx_libopenjpeg/src/fx_t1.c',
-        'core/src/fxcodec/fx_libopenjpeg/src/fx_t1_generate_luts.c',
         'core/src/fxcodec/fx_libopenjpeg/src/fx_t2.c',
         'core/src/fxcodec/fx_libopenjpeg/src/fx_tcd.c',
         'core/src/fxcodec/fx_libopenjpeg/src/fx_tgt.c',