--- hatari/src/gui-sdl/dlgSound.c	2019/04/09 08:47:27	1.1.1.7
+++ hatari/src/gui-sdl/dlgSound.c	2019/04/09 08:48:52	1.1.1.8
@@ -78,9 +78,9 @@ static const int nSoundFreqs[] =
 
 
 /*-----------------------------------------------------------------------*/
-/*
-  Show and process the sound dialog.
-*/
+/**
+ * Show and process the sound dialog.
+ */
 void Dialog_SoundDlg(void)
 {
 	int but, i;
@@ -97,7 +97,7 @@ void Dialog_SoundDlg(void)
 	for (i = DLGSOUND_11KHZ; i <= DLGSOUND_50KHZ; i++)
 		sounddlg[i].state &= ~SG_SELECTED;
 
-	for (i = 0; i < DLGSOUND_50KHZ-DLGSOUND_11KHZ; i++)
+	for (i = 0; i <= DLGSOUND_50KHZ-DLGSOUND_11KHZ; i++)
 	{
 		if (ConfigureParams.Sound.nPlaybackFreq > nSoundFreqs[i]-500
 		    && ConfigureParams.Sound.nPlaybackFreq < nSoundFreqs[i]+500)