diff --git a/Cargo.toml b/Cargo.toml
index 0a16810af..73bb265af 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,6 +36,9 @@ license = "MIT"
 [profile.release]
 codegen-units = 1
 
+[profile.release.package.heed]
+debug-assertions = true
+
 [profile.dev.package.flate2]
 opt-level = 3