diff --git a/psa-crypto-sys/build.rs b/psa-crypto-sys/build.rs
index fe3063b..6a5b375 100644
--- a/psa-crypto-sys/build.rs
+++ b/psa-crypto-sys/build.rs
@@ -3,7 +3,6 @@
 
 #![deny(
     nonstandard_style,
-    const_err,
     dead_code,
     improper_ctypes,
     non_shorthand_field_patterns,
diff --git a/psa-crypto/src/lib.rs b/psa-crypto/src/lib.rs
index db16a71..4270e2c 100644
--- a/psa-crypto/src/lib.rs
+++ b/psa-crypto/src/lib.rs
@@ -12,7 +12,6 @@
 #![cfg_attr(feature = "no-std", no_std)]
 #![deny(
     nonstandard_style,
-    const_err,
     dead_code,
     improper_ctypes,
     non_shorthand_field_patterns,