diff --git a/CHANGELOG.md b/CHANGELOG.md
index 95a37ca8..1acb597e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 ### Internals
 - Remove npm script to publish
 - Integrate devenv into nix flakes
+- Move `switch-plugin` from `tests` directory into `src/plugins`
 
 ---
 ## v0.6.0 (2024-03-27)
diff --git a/tests/switch-plugin/index.js b/src/plugins/switch-plugin/index.js
similarity index 97%
rename from tests/switch-plugin/index.js
rename to src/plugins/switch-plugin/index.js
index d77156c6..8b29b396 100644
--- a/tests/switch-plugin/index.js
+++ b/src/plugins/switch-plugin/index.js
@@ -5,7 +5,7 @@ const {
     printSingleTwigTag,
     indentWithHardline,
     isEmptySequence
-} = require("../../src/util");
+} = require("../../util");
 const { Node } = require("melody-types");
 
 const printSwitch = (node, path, print) => {
diff --git a/tests/GenericTagCustomPrint/jsfmt.spec.js b/tests/GenericTagCustomPrint/jsfmt.spec.js
index d277ffdf..0b9a0be6 100644
--- a/tests/GenericTagCustomPrint/jsfmt.spec.js
+++ b/tests/GenericTagCustomPrint/jsfmt.spec.js
@@ -1,4 +1,4 @@
 run_spec(__dirname, ["melody"], {
     twigMultiTags: ["switch,case,default,endswitch"],
-    twigMelodyPlugins: ["tests/switch-plugin"]
+    twigMelodyPlugins: ["src/plugins/switch-plugin"]
 });