diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000000000000000000000000000000000000..3c9d63365b70eda394fd9a66f1d801d93e3555b3
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,9 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+[*]
+# unix style line endings
+end_of_line = lf
+# indent by two spaces
+indent_style = space
+indent_size = 2
+
diff --git a/rdd-technical-reference.md b/rdd-technical-reference.md
index 55f54c4bb323b8d605313a1413b3b58d8dfa7841..a45030164ce6c1e2a81f93e84b675ba963d2dd71 100644
--- a/rdd-technical-reference.md
+++ b/rdd-technical-reference.md
@@ -34,6 +34,9 @@ software projects in RDD.
 
 ## Do you stick to our style guides?
 
+The basic definitions are given by our [EditorConfig](http://editorconfig.org/),
+i.e. unix line breaks and 2 space indentation.
+
 For the more prominent programming languages we have formatting and
 general style guides we ask you to follow: