diff --git a/README.md b/README.md
index 971e8a9789f2113c07d028d07a92288bdbe0d0bb..e6297817772da3ba4336426e4e4dd6f99d4ebeea 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,7 @@ Use the Godot3 branch for previous versions.
 * Install the gdpd folder in the addons folder of your Godot project.
 * Add pd patches and other needed files as exported in the export 
     settings (\*.pd, \*.wav) so that they are copied in the apk
+* Make sure .wav files that you want to use are marked as "Export as it is"
 
 
 In a script,