diff --git a/docs/src/dev/extensions.rst b/docs/src/dev/extensions.rst
index 9aae931a3..35f493fac 100644
--- a/docs/src/dev/extensions.rst
+++ b/docs/src/dev/extensions.rst
@@ -291,7 +291,7 @@ pointwise. This is captured in the templated function :meth:`axpby_impl`.
             auto y_offset = elem_to_loc(out_idx, y.shape(), y.strides());
 
             // We allocate the output to be contiguous and regularly strided
-            // (defaults to row major) and hence it doesn't need additonal mapping
+            // (defaults to row major) and hence it doesn't need additional mapping
             out_ptr[out_idx] = alpha * x_ptr[x_offset] + beta * y_ptr[y_offset];
         }
     }
diff --git a/examples/extensions/axpby/axpby.cpp b/examples/extensions/axpby/axpby.cpp
index 56a09f34e..5b60cb81d 100644
--- a/examples/extensions/axpby/axpby.cpp
+++ b/examples/extensions/axpby/axpby.cpp
@@ -98,7 +98,7 @@ void axpby_impl(
     auto y_offset = elem_to_loc(out_idx, y.shape(), y.strides());
 
     // We allocate the output to be contiguous and regularly strided
-    // (defaults to row major) and hence it doesn't need additonal mapping
+    // (defaults to row major) and hence it doesn't need additional mapping
     out_ptr[out_idx] = alpha * x_ptr[x_offset] + beta * y_ptr[y_offset];
   }
 }