diff --git a/embassy-nrf/src/util.rs b/embassy-nrf/src/util.rs
index 76162b701..b24bc452f 100644
--- a/embassy-nrf/src/util.rs
+++ b/embassy-nrf/src/util.rs
@@ -4,18 +4,18 @@ const SRAM_LOWER: usize = 0x2000_0000;
 const SRAM_UPPER: usize = 0x3000_0000;
 
 // TODO: replace transmutes with core::ptr::metadata once it's stable
-
-pub(crate) fn slice_ptr_parts<T>(slice: *const [T]) -> (usize, usize) {
+pub(crate) fn slice_ptr_parts<T>(slice: *const [T]) -> (*const T, usize) {
     unsafe { mem::transmute(slice) }
 }
 
-pub(crate) fn slice_ptr_parts_mut<T>(slice: *mut [T]) -> (usize, usize) {
+pub(crate) fn slice_ptr_parts_mut<T>(slice: *mut [T]) -> (*mut T, usize) {
     unsafe { mem::transmute(slice) }
 }
 
 /// Does this slice reside entirely within RAM?
 pub(crate) fn slice_in_ram<T>(slice: *const [T]) -> bool {
     let (ptr, len) = slice_ptr_parts(slice);
+    let ptr = ptr as usize;
     ptr >= SRAM_LOWER && (ptr + len * core::mem::size_of::<T>()) < SRAM_UPPER
 }