diff --git a/bitcoin/src/blockdata/transaction.rs b/bitcoin/src/blockdata/transaction.rs
index 3dc203dab..6512d7e83 100644
--- a/bitcoin/src/blockdata/transaction.rs
+++ b/bitcoin/src/blockdata/transaction.rs
@@ -1361,8 +1361,8 @@ mod tests {
     }
 
     // We temporarily abuse `Transaction` for testing consensus serde adapter.
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn consensus_serde() {
         use crate::consensus::serde as con_serde;
         let json = "\"010000000001010000000000000000000000000000000000000000000000000000000000000000ffffffff3603da1b0e00045503bd5704c7dd8a0d0ced13bb5785010800000000000a636b706f6f6c122f4e696e6a61506f6f6c2f5345475749542fffffffff02b4e5a212000000001976a914876fbb82ec05caa6af7a3b5e5a983aae6c6cc6d688ac0000000000000000266a24aa21a9edf91c46b49eb8a29089980f02ee6b57e7d63d33b18b4fddac2bcd7db2a39837040120000000000000000000000000000000000000000000000000000000000000000000000000\"";
diff --git a/bitcoin/src/crypto/key.rs b/bitcoin/src/crypto/key.rs
index 4ebf4f82e..247065d0b 100644
--- a/bitcoin/src/crypto/key.rs
+++ b/bitcoin/src/crypto/key.rs
@@ -1222,8 +1222,8 @@ mod tests {
         assert!(upk.wpubkey_hash().is_err());
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn test_key_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/bitcoin/src/network/mod.rs b/bitcoin/src/network/mod.rs
index fc130dc62..7f691f74c 100644
--- a/bitcoin/src/network/mod.rs
+++ b/bitcoin/src/network/mod.rs
@@ -490,8 +490,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn serde_as_core_arg() {
         #[derive(Serialize, Deserialize, PartialEq, Debug)]
         struct T {
diff --git a/bitcoin/src/pow.rs b/bitcoin/src/pow.rs
index 4e2bce91a..21019e1de 100644
--- a/bitcoin/src/pow.rs
+++ b/bitcoin/src/pow.rs
@@ -1643,8 +1643,8 @@ mod tests {
         assert_eq!(got, want);
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn u256_serde() {
         let check = |uint, hex| {
             let json = format!("\"{}\"", hex);
@@ -1932,8 +1932,8 @@ mod tests {
         assert_eq!(back, target)
     }
 
-    #[cfg(feature = "std")]
     #[test]
+    #[cfg(feature = "std")]
     fn work_log2() {
         // Compare work log2 to historical Bitcoin Core values found in Core logs.
         let tests: &[(u128, f64)] = &[
diff --git a/hashes/src/hash160.rs b/hashes/src/hash160.rs
index a0a8f715c..49410bc70 100644
--- a/hashes/src/hash160.rs
+++ b/hashes/src/hash160.rs
@@ -101,8 +101,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn ripemd_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/hmac.rs b/hashes/src/hmac.rs
index b3f931a12..a14a54455 100644
--- a/hashes/src/hmac.rs
+++ b/hashes/src/hmac.rs
@@ -289,8 +289,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn hmac_sha512_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/ripemd160.rs b/hashes/src/ripemd160.rs
index 3732cfb0b..a0791904a 100644
--- a/hashes/src/ripemd160.rs
+++ b/hashes/src/ripemd160.rs
@@ -493,8 +493,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn ripemd_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/sha1.rs b/hashes/src/sha1.rs
index 134a6178a..63d7293be 100644
--- a/hashes/src/sha1.rs
+++ b/hashes/src/sha1.rs
@@ -197,8 +197,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn sha1_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/sha256.rs b/hashes/src/sha256.rs
index 4aa2c6467..6cdad22c9 100644
--- a/hashes/src/sha256.rs
+++ b/hashes/src/sha256.rs
@@ -1063,8 +1063,8 @@ mod tests {
         assert_eq!(got, want);
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn sha256_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/sha256d.rs b/hashes/src/sha256d.rs
index 44e6580f3..380a6bf24 100644
--- a/hashes/src/sha256d.rs
+++ b/hashes/src/sha256d.rs
@@ -107,8 +107,8 @@ mod tests {
         assert_eq!(rinsed, hash)
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn sha256_serde() {
         use serde_test::{assert_tokens, Configure, Token};
 
diff --git a/hashes/src/sha512.rs b/hashes/src/sha512.rs
index 793687abf..0b2e42d28 100644
--- a/hashes/src/sha512.rs
+++ b/hashes/src/sha512.rs
@@ -384,8 +384,8 @@ mod tests {
         }
     }
 
-    #[cfg(feature = "serde")]
     #[test]
+    #[cfg(feature = "serde")]
     fn sha512_serde() {
         use serde_test::{assert_tokens, Configure, Token};