diff --git a/tools/README.md b/tools/README.md
index e05db5c4..4d0a50e7 100644
--- a/tools/README.md
+++ b/tools/README.md
@@ -7,7 +7,7 @@ This directory contains utilities to split and re-constitute amalgamated files.
 
 Here's how `mongoose.c` can be split into its consituent parts:
 ```
-$ tools/unamalgam mongoose.c
+$ tools/unamalgam.py mongoose.c
 => mongoose/src/internal.h
 => common/cs_dbg.h
 ...
@@ -16,7 +16,7 @@ $ tools/unamalgam mongoose.c
 This produces directories and files under `mongoose/` and `common/` that are easeier to work with.
 It also produces `mongoose.c.manifest` which can later be used to reconstruct the file back:
 ```
-$ tools/amalgam --prefix=MG --public-header=mongoose.h $(cat mongoose.c.manifest) > mongoose.c
+$ tools/amalgam.py --prefix=MG --public-header=mongoose.h $(cat mongoose.c.manifest) > mongoose.c
 ```
 
 The same applies to `mongoose.h`, except `--public-header` should be omitted during amalgamation.