diff --git a/src/nouveau/compiler/nak/sm70_encode.rs b/src/nouveau/compiler/nak/sm70_encode.rs
index dc544ac888c..ce18748326a 100644
--- a/src/nouveau/compiler/nak/sm70_encode.rs
+++ b/src/nouveau/compiler/nak/sm70_encode.rs
@@ -2796,7 +2796,7 @@ impl SM70Op for OpSuAtom {
         e.set_eviction_priority(&self.mem_eviction_priority);
 
         e.set_bit(72, false); // .BA
-        e.set_atom_type(73..76, self.atom_type);
+        e.set_atom_type(self.atom_type);
     }
 }
 
@@ -2965,10 +2965,9 @@ impl SM70Encoder<'_> {
         );
     }
 
-    fn set_atom_type(&mut self, range: Range<usize>, atom_type: AtomType) {
-        assert!(range.len() == 3);
+    fn set_atom_type(&mut self, atom_type: AtomType) {
         self.set_field(
-            range,
+            73..76,
             match atom_type {
                 AtomType::U32 => 0_u8,
                 AtomType::I32 => 1_u8,
@@ -3051,7 +3050,7 @@ impl SM70Op for OpAtom {
         e.set_dst(self.dst);
         e.set_reg_src(24..32, self.addr);
         e.set_field(40..64, self.addr_offset);
-        e.set_atom_type(73..76, self.atom_type);
+        e.set_atom_type(self.atom_type);
     }
 }