diff --git a/.gitignore b/.gitignore
index 286ec45c7..bac5577ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,13 @@ poincare/src/expression_lexer.hpp
 poincare/src/expression_parser.cpp
 poincare/src/expression_parser.hpp
 
+# No rulegen generated files
+poincare/src/simplify/rules_generation/rules_tokens.h
+poincare/src/simplify/rules_generation/rules_lexer.cpp
+poincare/src/simplify/rules_generation/rules_parser.cpp
+poincare/src/simplify/rules_generation/rulegen
+poincare/src/simplify/rules.cpp
+
 # Font related generated files.
 kandinsky/fonts/rasterizer
 kandinsky/src/font.c