diff --git a/serde/src/de/impls.rs b/serde/src/de/impls.rs
index 1b93f6381..b2311e1dc 100644
--- a/serde/src/de/impls.rs
+++ b/serde/src/de/impls.rs
@@ -2662,7 +2662,7 @@ where
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic)))]
 macro_rules! atomic_impl {
-    ($($ty:ident)*) => {
+    ($($ty:ident $size:expr)*) => {
         $(
             impl<'de> Deserialize<'de> for $ty {
                 fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
@@ -2678,7 +2678,7 @@ macro_rules! atomic_impl {
 
 #[cfg(all(feature = "std", not(no_target_has_atomic)))]
 macro_rules! atomic_impl {
-    ($($ty:ident $size:expr),*) => {
+    ($($ty:ident $size:expr)*) => {
         $(
             #[cfg(target_has_atomic = $size)]
             impl<'de> Deserialize<'de> for $ty {
@@ -2695,28 +2695,35 @@ macro_rules! atomic_impl {
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic)))]
 atomic_impl! {
-    AtomicBool
-    AtomicI8 AtomicI16 AtomicI32 AtomicIsize
-    AtomicU8 AtomicU16 AtomicU32 AtomicUsize
+    AtomicBool "8"
+    AtomicI8 "8"
+    AtomicI16 "16"
+    AtomicI32 "32"
+    AtomicIsize "ptr"
+    AtomicU8 "8"
+    AtomicU16 "16"
+    AtomicU32 "32"
+    AtomicUsize "ptr"
 }
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic64)))]
 atomic_impl! {
-    AtomicI64 AtomicU64
+    AtomicI64 "64"
+    AtomicU64 "64"
 }
 
 #[cfg(all(feature = "std", not(no_target_has_atomic)))]
 atomic_impl! {
-    AtomicBool "8",
-    AtomicI8 "8",
-    AtomicI16 "16",
-    AtomicI32 "32",
-    AtomicI64 "64",
-    AtomicIsize "ptr",
-    AtomicU8 "8",
-    AtomicU16 "16",
-    AtomicU32 "32",
-    AtomicU64 "64",
+    AtomicBool "8"
+    AtomicI8 "8"
+    AtomicI16 "16"
+    AtomicI32 "32"
+    AtomicI64 "64"
+    AtomicIsize "ptr"
+    AtomicU8 "8"
+    AtomicU16 "16"
+    AtomicU32 "32"
+    AtomicU64 "64"
     AtomicUsize "ptr"
 }
 
diff --git a/serde/src/ser/impls.rs b/serde/src/ser/impls.rs
index e3434460f..4698827be 100644
--- a/serde/src/ser/impls.rs
+++ b/serde/src/ser/impls.rs
@@ -947,7 +947,7 @@ where
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic)))]
 macro_rules! atomic_impl {
-    ($($ty:ident)*) => {
+    ($($ty:ident $size:expr)*) => {
         $(
             impl Serialize for $ty {
                 fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
@@ -964,7 +964,7 @@ macro_rules! atomic_impl {
 
 #[cfg(all(feature = "std", not(no_target_has_atomic)))]
 macro_rules! atomic_impl {
-    ($($ty:ident $size:expr),*) => {
+    ($($ty:ident $size:expr)*) => {
         $(
             #[cfg(target_has_atomic = $size)]
             impl Serialize for $ty {
@@ -982,27 +982,34 @@ macro_rules! atomic_impl {
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic)))]
 atomic_impl! {
-    AtomicBool
-    AtomicI8 AtomicI16 AtomicI32 AtomicIsize
-    AtomicU8 AtomicU16 AtomicU32 AtomicUsize
+    AtomicBool "8"
+    AtomicI8 "8"
+    AtomicI16 "16"
+    AtomicI32 "32"
+    AtomicIsize "ptr"
+    AtomicU8 "8"
+    AtomicU16 "16"
+    AtomicU32 "32"
+    AtomicUsize "ptr"
 }
 
 #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic64)))]
 atomic_impl! {
-    AtomicI64 AtomicU64
+    AtomicI64 "64"
+    AtomicU64 "64"
 }
 
 #[cfg(all(feature = "std", not(no_target_has_atomic)))]
 atomic_impl! {
-    AtomicBool "8",
-    AtomicI8 "8",
-    AtomicI16 "16",
-    AtomicI32 "32",
-    AtomicI64 "64",
-    AtomicIsize "ptr",
-    AtomicU8 "8",
-    AtomicU16 "16",
-    AtomicU32 "32",
-    AtomicU64 "64",
+    AtomicBool "8"
+    AtomicI8 "8"
+    AtomicI16 "16"
+    AtomicI32 "32"
+    AtomicI64 "64"
+    AtomicIsize "ptr"
+    AtomicU8 "8"
+    AtomicU16 "16"
+    AtomicU32 "32"
+    AtomicU64 "64"
     AtomicUsize "ptr"
 }