diff --git a/.eslintignore b/.eslintignore
index 9e586b92e..4fe4bb47a 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -6,3 +6,6 @@
 /core/modules/utils/diff-match-patch/diff_match_patch_uncompressed.js
 /core/modules/utils/dom/csscolorparser.js
 /plugins/tiddlywiki/*/files/
+/tmp/
+/output/
+ 
\ No newline at end of file
diff --git a/.prettierignore b/.prettierignore
index 8203382c8..7c5774456 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,8 +1,10 @@
-# Ignore third party libraries
-files
-output
-tmp
-base64-utf8
-diff-match-patch
-csscolorparser.js
-sjcl.js
\ No newline at end of file
+# Ignore "third party" code whose style we will not change.
+/boot/sjcl.js
+/core/modules/utils/base64-utf8/base64-utf8.module.js
+/core/modules/utils/base64-utf8/base64-utf8.module.min.js
+/core/modules/utils/diff-match-patch/diff_match_patch.js
+/core/modules/utils/diff-match-patch/diff_match_patch_uncompressed.js
+/core/modules/utils/dom/csscolorparser.js
+/plugins/tiddlywiki/*/files/
+/tmp/
+/output/