diff --git a/Cargo.toml b/Cargo.toml
index 8668c2bc85..f8c373ca8a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,6 +15,9 @@ build = "build/build.rs"
 documentation = "https://docs.esp-rs.org/esp-idf-sys/"
 rust-version = "1.66"
 
+[lib]
+harness = false
+
 [features]
 default = ["std", "binstart"]