diff --git a/Cargo-zng.toml b/Cargo-zng.toml
index 0c8c092c..9a6a3ee6 100644
--- a/Cargo-zng.toml
+++ b/Cargo-zng.toml
@@ -37,3 +37,6 @@ libc = "0.2.43"
 
 [build-dependencies]
 cmake = "0.1"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(zng)'] }
diff --git a/Cargo.toml b/Cargo.toml
index 80fe3dce..84ba77be 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -91,3 +91,6 @@ stock-zlib = []
 asm = []
 # Enable this feature if you want to have a statically linked libz
 static = []
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(zng)'] }