diff --git a/devices/src/legacy/rtc_pl031.rs b/devices/src/legacy/rtc_pl031.rs
index 2c1e4d6bd..18ea32b27 100644
--- a/devices/src/legacy/rtc_pl031.rs
+++ b/devices/src/legacy/rtc_pl031.rs
@@ -70,9 +70,9 @@ pub enum ClockType {
     ThreadCpu,
 }
 
-impl Into<libc::clockid_t> for ClockType {
-    fn into(self) -> libc::clockid_t {
-        match self {
+impl From<ClockType> for libc::clockid_t {
+    fn from(ct: ClockType) -> libc::clockid_t {
+        match ct {
             ClockType::Monotonic => libc::CLOCK_MONOTONIC,
             ClockType::Real => libc::CLOCK_REALTIME,
             ClockType::ProcessCpu => libc::CLOCK_PROCESS_CPUTIME_ID,