diff --git a/source/blender/blenlib/BLI_index_mask.hh b/source/blender/blenlib/BLI_index_mask.hh
index be07452f48a..fc0d48ce960 100644
--- a/source/blender/blenlib/BLI_index_mask.hh
+++ b/source/blender/blenlib/BLI_index_mask.hh
@@ -340,7 +340,7 @@ class IndexMask : private IndexMaskData {
    */
   void to_bits(MutableBitSpan r_bits) const;
   /**
-   * Set the bools at indies in the mask to true and all others to false.
+   * Set the bools at indices in the mask to true and all others to false.
    */
   void to_bools(MutableSpan<bool> r_bools) const;
   /**