diff --git a/dtool/.gitignore b/dtool/.gitignore
index f3c7a7c5da..008b9d74cb 100644
--- a/dtool/.gitignore
+++ b/dtool/.gitignore
@@ -1 +1 @@
-Makefile
+pp.dep
diff --git a/dtool/src/cppparser/.gitignore b/dtool/src/cppparser/.gitignore
new file mode 100644
index 0000000000..541962b7c1
--- /dev/null
+++ b/dtool/src/cppparser/.gitignore
@@ -0,0 +1,2 @@
+/cppBison.cxx
+/cppBison.h