diff --git a/Cargo.toml b/Cargo.toml
index 83fb36c1..44530442 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -91,12 +91,12 @@ incremental = false
 codegen-units = 1
 debug = true
 lto = false
-opt-level = 1
+opt-level = "s" # Optimize for size even in debug builds
 
 [profile.release]
 incremental = false
 codegen-units = 1
-debug = true
+debug = true # Required for defmt
 lto = false
 opt-level = "s"