diff --git a/src/ion/data_structures.rs b/src/ion/data_structures.rs
index 780ca4cc..9dd5cb3b 100644
--- a/src/ion/data_structures.rs
+++ b/src/ion/data_structures.rs
@@ -468,10 +468,10 @@ pub struct Ctx {
     // single VReg at a single program point (this can happen for,
     // e.g., call args that use the same value multiple times), we
     // remove all but one of the fixed-register constraints, make a
-    // note here, and add a clobber with that PReg instread to keep
+    // note here, and add a clobber with that PReg instead to keep
     // the register available. When we produce the final edit-list, we
     // will insert a copy from wherever the VReg's primary allocation
-    // was to the approprate PReg.
+    // was to the appropriate PReg.
     pub(crate) multi_fixed_reg_fixups: Vec<MultiFixedRegFixup>,
 
     pub(crate) allocated_bundle_count: usize,
diff --git a/src/ion/moves.rs b/src/ion/moves.rs
index 22685e53..ba500f60 100644
--- a/src/ion/moves.rs
+++ b/src/ion/moves.rs
@@ -119,8 +119,8 @@ impl<'a, F: Function> Env<'a, F> {
                 self.prev_ins_idx
             }
 
-            /// Record this index as the next index to use when the previous liverange buffer
-            /// anvances.
+            /// Record this index as the next index to use when the previous
+            /// liverange buffer advances.
             #[inline(always)]
             fn update_blockparam_ins_idx(&mut self, idx: usize) {
                 self.buffered_ins_idx = idx;