diff --git a/USER_MANUAL.html b/USER_MANUAL.html
index 3bcb0328..ffa50adc 100644
--- a/USER_MANUAL.html
+++ b/USER_MANUAL.html
@@ -527,7 +527,7 @@ FMA             -       Supports FMA extensions using YMM state</code></pre>
 <li>Suppressed clipping of TX speech when PTT is released. (PR #123)</li>
 <li>Added missing mode labels for 800XA and 2400B as a result of implementing multi-RX in 1.5.3. (PR #128)</li>
 <li>Fixed analog passthrough when using 2400B. (PR #130)</li>
-<li>Fixed non-responsible scroll controls on macOS. (PR #139)</li>
+<li>Fixed non-responsive scroll controls on macOS. (PR #139)</li>
 <li>Auto EQ now working for 800XA. (PR #141)</li>
 <li>Reset scatter plot state when multi-RX switches modes. (PR #146)</li>
 <li>Use selected sound device sample rates for the equalizer controls. (PR #142)</li>
diff --git a/USER_MANUAL.pdf b/USER_MANUAL.pdf
index 372db6a5..07e114c1 100644
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