diff --git a/src/host.rs b/src/host.rs
index 3b3af5b..a15fd9d 100644
--- a/src/host.rs
+++ b/src/host.rs
@@ -29,7 +29,7 @@ impl<'a> RuntimeArgs<'a> {
 	/// Returns `Err` if this list has not enough arguments.
 	pub fn nth_value_checked(&self, idx: usize) -> Result<RuntimeValue, Trap> {
 		if self.0.len() <= idx {
-			return Err(Trap::new(TrapKind::UnexpectedSignature));
+			return Err(TrapKind::UnexpectedSignature.into());
 		}
 		Ok(self.0[idx])
 	}
@@ -207,7 +207,7 @@ impl Externals for NopExternals {
 		_index: usize,
 		_args: RuntimeArgs,
 	) -> Result<Option<RuntimeValue>, Trap> {
-		Err(Trap::new(TrapKind::Unreachable))
+		Err(TrapKind::Unreachable.into())
 	}
 }
 
diff --git a/src/tests/host.rs b/src/tests/host.rs
index 43d03ae..a6546b9 100644
--- a/src/tests/host.rs
+++ b/src/tests/host.rs
@@ -92,7 +92,7 @@ impl Externals for TestHost {
 			ERR_FUNC_INDEX => {
 				let error_code: u32 = args.nth(0);
 				let error = HostErrorWithCode { error_code };
-				Err(Trap::new(TrapKind::Host(Box::new(error))))
+				Err(TrapKind::Host(Box::new(error)).into())
 			}
 			INC_MEM_FUNC_INDEX => {
 				let ptr: u32 = args.nth(0);
@@ -131,7 +131,7 @@ impl Externals for TestHost {
 					.expect("expected to be Some");
 
 				if val.value_type() != result.value_type() {
-					return Err(Trap::new(TrapKind::Host(Box::new(HostErrorWithCode { error_code: 123 }))));
+					return Err(TrapKind::Host(Box::new(HostErrorWithCode { error_code: 123 })).into());
 				}
 				Ok(Some(result))
 			}