diff --git a/README.md b/README.md
index 42e88e3..401c324 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,6 @@ Compile:
 $ arduino-cli compile --fqbn CubeCell:CubeCell:CubeCell-Board \
                       --build-property "build.band=REGION_EU868" \
                       --build-property "build.LORAWAN_CLASS=CLASS_A" \
-                      --build-property "build.LORAWAN_CLASS=CLASS_A" \
                       --build-property "build.LORAWAN_DEVEUI_AUTO=0" \
                       --build-property "build.LORAWAN_NETMODE=true" \
                       --build-property "build.LORAWAN_ADR=true" \