diff --git a/ppx/README.md b/ppx/README.md
index 9f5c6db..045df9b 100644
--- a/ppx/README.md
+++ b/ppx/README.md
@@ -12,15 +12,15 @@ configuration to your project:
 ```dune
 (executable
  ...
- (preprocess (pps melange-json.native)))
+ (preprocess (pps melange-json.ppx-native)))
 
 (library
  (modes melange)
- (preprocess (pps melange-json.js)))
+ (preprocess (pps melange-json.ppx)))
 ```
 
-Note that you need to use the `melange-json.native` preprocessor for OCaml
-native and the `melange-json.js` preprocessor for Melange.
+Note that you need to use the `melange-json.ppx-native` preprocessor for OCaml
+native and the `melange-json.ppx` preprocessor for Melange.
 
 ## Usage
 
diff --git a/ppx/browser/dune b/ppx/browser/dune
index e9661bd..4e428d4 100644
--- a/ppx/browser/dune
+++ b/ppx/browser/dune
@@ -1,5 +1,5 @@
 (library
- (public_name melange-json.js)
+ (public_name melange-json.ppx)
  (name ppx_deriving_json_js)
  (modules
   :standard
@@ -7,13 +7,13 @@
   ppx_deriving_json_runtime
   ppx_deriving_json_js_test)
  (libraries ppxlib)
- (ppx_runtime_libraries melange-json.js_runtime)
+ (ppx_runtime_libraries melange-json.ppx-runtime)
  (preprocess
   (pps ppxlib.metaquot))
  (kind ppx_deriver))
 
 (library
- (public_name melange-json.js_runtime)
+ (public_name melange-json.ppx-runtime)
  (name ppx_deriving_json_js_runtime)
  (modules ppx_deriving_json_runtime)
  (wrapped false)
@@ -22,7 +22,7 @@
 (executable
  (name ppx_deriving_json_js_test)
  (modules ppx_deriving_json_js_test)
- (libraries melange-json.js ppxlib))
+ (libraries melange-json.ppx ppxlib))
 
 (rule
  (target ppx_deriving_json_js.mli)
diff --git a/ppx/native/dune b/ppx/native/dune
index 184b444..fcd5039 100644
--- a/ppx/native/dune
+++ b/ppx/native/dune
@@ -1,5 +1,5 @@
 (library
- (public_name melange-json.native)
+ (public_name melange-json.ppx-native)
  (name ppx_deriving_json_native)
  (modules
   :standard
@@ -7,13 +7,13 @@
   ppx_deriving_json_runtime
   ppx_deriving_json_native_test)
  (libraries ppxlib)
- (ppx_runtime_libraries melange-json.native_runtime)
+ (ppx_runtime_libraries melange-json.ppx-native-runtime)
  (preprocess
   (pps ppxlib.metaquot))
  (kind ppx_deriver))
 
 (library
- (public_name melange-json.native_runtime)
+ (public_name melange-json.ppx-native-runtime)
  (name ppx_deriving_json_native_runtime)
  (wrapped false)
  (modules ppx_deriving_json_runtime)
@@ -22,7 +22,7 @@
 (executable
  (name ppx_deriving_json_native_test)
  (modules ppx_deriving_json_native_test)
- (libraries melange-json.native ppxlib))
+ (libraries melange-json.ppx-native ppxlib))
 
 (rule
  (target ppx_deriving_json_native.mli)
diff --git a/ppx/test/ppx_deriving_json_js.e2e.t b/ppx/test/ppx_deriving_json_js.e2e.t
index 03c7561..2eecde5 100644
--- a/ppx/test/ppx_deriving_json_js.e2e.t
+++ b/ppx/test/ppx_deriving_json_js.e2e.t
@@ -8,7 +8,7 @@
   >  (modes melange)
   >  (modules example main)
   >  (flags :standard -w -37-69 -open Ppx_deriving_json_runtime.Primitives)
-  >  (preprocess (pps melange.ppx melange-json.js)))
+  >  (preprocess (pps melange.ppx melange-json.ppx)))
   > (melange.emit
   >  (alias js)
   >  (target output)
diff --git a/ppx/test/ppx_deriving_json_native.e2e.t b/ppx/test/ppx_deriving_json_native.e2e.t
index 29e1d44..074c5f1 100644
--- a/ppx/test/ppx_deriving_json_native.e2e.t
+++ b/ppx/test/ppx_deriving_json_native.e2e.t
@@ -5,7 +5,7 @@
   >   (name main)
   >   (libraries yojson)
   >   (flags :standard -w -37-69 -open Ppx_deriving_json_runtime.Primitives)
-  >   (preprocess (pps melange-json.native)))' > dune
+  >   (preprocess (pps melange-json.ppx-native)))' > dune
 
   $ echo '
   > open Example