diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 033939551b..8457af3af9 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -114,6 +114,7 @@ src/info.*                @akohlmey @rbberger
 src/timer.*               @akohlmey
 src/min*                  @sjplimp @stanmoore1
 src/utils.*               @akohlmey @rbberger
+src/math_eigen_impl.h     @jewettaij
 
 # tools
 tools/msi2lmp/*       @akohlmey
@@ -134,6 +135,9 @@ cmake/presets/*.cmake @junghans @rbberger @akohlmey
 # python
 python/*              @rbberger
 
+# fortran
+fortran/*             @akohlmey
+
 # docs
 doc/utils/*/*         @rbberger
 doc/Makefile          @rbberger