diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000000000000000000000000000000000000..883a63c034401ec1fceb477fe33c8342f74a87c1
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+The SWIFT source code is using a variation of the 'Google' formatting style. 
+The script 'format.sh' in the root directory applies the clang-format-3.8
+tool with our style choices to all the SWIFT C source file. Please apply 
+the formatting script to the files before submitting a merge request.
\ No newline at end of file