diff --git a/lib/src/sql/datetime.rs b/lib/src/sql/datetime.rs
index 09413cbc..44edae9e 100644
--- a/lib/src/sql/datetime.rs
+++ b/lib/src/sql/datetime.rs
@@ -77,7 +77,7 @@ impl Serialize for Datetime {
 		if is_internal_serialization() {
 			serializer.serialize_newtype_struct(TOKEN, &self.0)
 		} else {
-			serializer.serialize_some(&self.to_string())
+			serializer.serialize_some(&self.0)
 		}
 	}
 }
diff --git a/lib/src/sql/strand.rs b/lib/src/sql/strand.rs
index dff98238..3c42200d 100644
--- a/lib/src/sql/strand.rs
+++ b/lib/src/sql/strand.rs
@@ -82,7 +82,7 @@ impl Serialize for Strand {
 		if is_internal_serialization() {
 			serializer.serialize_newtype_struct(TOKEN, &self.0)
 		} else {
-			serializer.serialize_some(&self.to_string())
+			serializer.serialize_some(&self.0)
 		}
 	}
 }
diff --git a/lib/src/sql/uuid.rs b/lib/src/sql/uuid.rs
index dcb65435..78490c77 100644
--- a/lib/src/sql/uuid.rs
+++ b/lib/src/sql/uuid.rs
@@ -90,7 +90,7 @@ impl Serialize for Uuid {
 		if is_internal_serialization() {
 			serializer.serialize_newtype_struct(TOKEN, &self.0)
 		} else {
-			serializer.serialize_some(&self.to_string())
+			serializer.serialize_some(&self.0)
 		}
 	}
 }