diff --git a/docs/DSP/GameCube_DSP_Users_Manual/GameCube_DSP_Users_Manual.tex b/docs/DSP/GameCube_DSP_Users_Manual/GameCube_DSP_Users_Manual.tex
index 2f7c4f2df9..7358d2bf2a 100644
--- a/docs/DSP/GameCube_DSP_Users_Manual/GameCube_DSP_Users_Manual.tex
+++ b/docs/DSP/GameCube_DSP_Users_Manual/GameCube_DSP_Users_Manual.tex
@@ -1134,6 +1134,7 @@ There are two pairs of conditions that work similarly: \texttt{EQ}/\texttt{NE} a
 
   \begin{DSPOpcodeDescription}
     \item Adds secondary accumulator \Register{\$axS.l} to accumulator register \Register{\$acD}.
+          \Register{\$axS.l} is treated as an unsigned value.
   \end{DSPOpcodeDescription}
 
   \begin{DSPOpcodeOperation}