diff --git a/acpi_tables/src/aml.rs b/acpi_tables/src/aml.rs
index 21402081c..15d196706 100644
--- a/acpi_tables/src/aml.rs
+++ b/acpi_tables/src/aml.rs
@@ -533,14 +533,14 @@ impl Interrupt {
 impl Aml for Interrupt {
     fn append_aml_bytes(&self, bytes: &mut Vec<u8>) {
         bytes.push(0x89); /* Extended IRQ Descriptor */
-        bytes.append(&mut 6u16.to_le_bytes().to_vec());
+        bytes.extend_from_slice(&6u16.to_le_bytes());
         let flags = (self.shared as u8) << 3
             | (self.active_low as u8) << 2
             | (self.edge_triggered as u8) << 1
             | self.consumer as u8;
         bytes.push(flags);
         bytes.push(1u8); /* count */
-        bytes.append(&mut self.number.to_le_bytes().to_vec());
+        bytes.extend_from_slice(&self.number.to_le_bytes());
     }
 }