diff --git a/src/fontations/lib.rs b/src/fontations/lib.rs
index 05dff807c..d87e6849a 100644
--- a/src/fontations/lib.rs
+++ b/src/fontations/lib.rs
@@ -358,10 +358,11 @@ pub extern "C" fn hb_fontations_font_set_funcs(font: *mut hb_font_t) {
 
     let mut num_coords: u32 = 0;
     let coords = unsafe { hb_font_get_var_coords_normalized(font, &mut num_coords) };
+    let coords = unsafe { std::slice::from_raw_parts(coords, num_coords as usize) };
     let mut location = Location::new(num_coords as usize);
     let coords_mut = location.coords_mut();
     for i in 0..num_coords as usize {
-        coords_mut[i] = NormalizedCoord::from_bits(unsafe { *coords.offset(i as isize) } as i16);
+        coords_mut[i] = NormalizedCoord::from_bits(coords[i] as i16);
     }
 
     let outline_glyphs = font_ref.outline_glyphs();