diff --git a/Cargo.toml b/Cargo.toml
index dcef60b5..8a05f151 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -97,6 +97,8 @@ gpio-h72 = []
 gpio-h747 = []
 gpio-h7a2 = []
 
+defmt = ["dep:defmt", "fugit/defmt", "smoltcp?/defmt"]
+
 dsi = ["embedded-display-controller"]
 cm4 = []
 cm7 = []