diff --git a/units/src/amount/tests.rs b/units/src/amount/tests.rs
index 127e7566c..f8aba133f 100644
--- a/units/src/amount/tests.rs
+++ b/units/src/amount/tests.rs
@@ -104,8 +104,13 @@ fn from_str_zero_without_denomination() {
 fn from_int_btc() {
     let amt = Amount::from_btc_u16(2);
     assert_eq!(sat(200_000_000), amt);
+    let amt = Amount::from_int_btc(2_u16);
+    assert_eq!(sat(200_000_000), amt);
+
     let amt = SignedAmount::from_btc_i16(-2);
     assert_eq!(ssat(-200_000_000), amt);
+    let amt = SignedAmount::from_int_btc(-2_i16);
+    assert_eq!(ssat(-200_000_000), amt);
 }
 
 #[test]