diff --git a/Cargo.toml b/Cargo.toml
index 1d937706..7731cce8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,3 +18,6 @@ lto = true
 opt-level = 3
 debug = true
 panic = 'unwind'
+
+[profile.dev]
+opt-level = 1