diff --git a/src/backend/postgres/query.rs b/src/backend/postgres/query.rs
index 2970f4442..1fd39acb6 100644
--- a/src/backend/postgres/query.rs
+++ b/src/backend/postgres/query.rs
@@ -156,12 +156,11 @@ impl QueryBuilder for PostgresQueryBuilder {
     }
 
     fn write_bytes(&self, bytes: &[u8], buffer: &mut String) {
-        write!(
-            buffer,
-            "'\\x{}'",
-            bytes.iter().map(|b| format!("{b:02X}")).collect::<String>()
-        )
-        .unwrap()
+        write!(buffer, "'\\x").unwrap();
+        for b in bytes {
+            format!("{b:02X}");
+        }
+        write!(buffer, "'").unwrap();
     }
 
     fn if_null_function(&self) -> &str {
diff --git a/src/backend/query_builder.rs b/src/backend/query_builder.rs
index fd8c7677d..0b2e6100e 100644
--- a/src/backend/query_builder.rs
+++ b/src/backend/query_builder.rs
@@ -1405,12 +1405,11 @@ pub trait QueryBuilder:
     #[doc(hidden)]
     /// Write bytes enclosed with engine specific byte syntax
     fn write_bytes(&self, bytes: &[u8], buffer: &mut String) {
-        write!(
-            buffer,
-            "x'{}'",
-            bytes.iter().map(|b| format!("{b:02X}")).collect::<String>()
-        )
-        .unwrap()
+        write!(buffer, "x'").unwrap();
+        for b in bytes {
+            format!("{b:02X}");
+        }
+        write!(buffer, "'").unwrap();
     }
 
     #[doc(hidden)]