diff --git a/tools/readme.txt b/tools/readme.txt
index fc1108fded..dd8a1d4494 100644
--- a/tools/readme.txt
+++ b/tools/readme.txt
@@ -11,6 +11,12 @@ get-developpers
     of Buildroot, so they can be Cc:ed on a mail. Accepts a patch as
     input, a package name or and architecture name.
 
+size-stat-compare
+    a script to compare the rootfs size between two differnt Buildroot
+    configurations. This can be used to identify the size impact of
+    a specific option, or of a set of specific options, or an update
+    to a newer Buildroot version...
+
 test-pkg
     a script that tests a specific package against a set of various
     toolchains, with the goal to detect toolchain-related dependencies
diff --git a/support/scripts/size-stats-compare b/tools/size-stats-compare
similarity index 100%
rename from support/scripts/size-stats-compare
rename to tools/size-stats-compare