diff --git a/Roadmap.md b/Roadmap.md
index 748513d..c8d6c5c 100644
--- a/Roadmap.md
+++ b/Roadmap.md
@@ -3,5 +3,6 @@
   * add labels
   * csdr examples for transmitting with HackRF
   * look into BIGBUF again
+  * ppm correction can be given as freq. offset
   * [DONE] exclusively uses ncat
   * [DONE] fix OS sample rate bug 
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