diff --git a/check_source/check_spelling_c_config.py b/check_source/check_spelling_c_config.py
index 1c074e00e796e69c7021d8436e0490b090494be1..3653702b6847c4caf8d7e2460e5731cab3b4cb03 100644
--- a/check_source/check_spelling_c_config.py
+++ b/check_source/check_spelling_c_config.py
@@ -46,6 +46,7 @@ dict_custom = {
     "adjoint", "adjugate",
     "alignable",
     "allocator", "allocators",
+    "anisotropic",
     "anisotropy",
     "atomicity",
     "boolean",
@@ -113,6 +114,7 @@ dict_custom = {
     "orthogonalize",
     "parallelize",
     "parallelizing",
+    "precompute",
     "tokenizing",
     "transmissive",
     "unpaused"