diff --git a/Cargo.toml b/Cargo.toml
index 05c7b1012..6db076545 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,6 +28,7 @@ license = "MIT"
 
 [profile.release]
 codegen-units = 1
+debug = true
 
 [profile.dev.package.flate2]
 opt-level = 3