diff --git a/Code/driver/src/error.rs b/Code/driver/src/error.rs
index 772f0bb53..85c2e77aa 100644
--- a/Code/driver/src/error.rs
+++ b/Code/driver/src/error.rs
@@ -24,6 +24,7 @@ impl<Ctx> fmt::Display for Error<Ctx>
 where
     Ctx: Context,
 {
+    #[cfg_attr(coverage_nightly, coverage(off))]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             Error::NoValueToPropose => write!(f, "No value to propose"),
@@ -42,6 +43,7 @@ impl<Ctx> PartialEq for Error<Ctx>
 where
     Ctx: Context,
 {
+    #[cfg_attr(coverage_nightly, coverage(off))]
     fn eq(&self, other: &Self) -> bool {
         match (self, other) {
             (Error::NoValueToPropose, Error::NoValueToPropose) => true,
diff --git a/Code/test/src/validator_set.rs b/Code/test/src/validator_set.rs
index e3da15d0e..36c1fee52 100644
--- a/Code/test/src/validator_set.rs
+++ b/Code/test/src/validator_set.rs
@@ -25,6 +25,7 @@ impl Address {
 }
 
 impl fmt::Display for Address {
+    #[cfg_attr(coverage_nightly, coverage(off))]
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         for byte in self.0.iter() {
             write!(f, "{:02x}", byte)?;