diff --git a/src/diyfp.rs b/src/diyfp.rs
index ee2e50a..cbda2a9 100644
--- a/src/diyfp.rs
+++ b/src/diyfp.rs
@@ -138,7 +138,7 @@ macro_rules! diyfp {
             */
             #[cfg_attr(feature = "no-panic", no_panic)]
             unsafe fn from(d: $fty) -> Self {
-                let u: $mask_type = mem::transmute(d);
+                let u: $mask_type = <$fty>::to_bits(d);
 
                 let biased_e = ((u & $exponent_mask) >> $significand_size) as $expty;
                 let significand = u & $significand_mask;
diff --git a/src/lib.rs b/src/lib.rs
index 41e3b1b..5c2c0ec 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -59,7 +59,7 @@ mod diyfp;
 #[macro_use]
 mod dtoa;
 
-use core::mem::{self, MaybeUninit};
+use core::mem::MaybeUninit;
 use core::slice;
 use core::str;
 #[cfg(feature = "no-panic")]