diff --git a/colorchord2/main.c b/colorchord2/main.c
index af1244f..9c23423 100644
--- a/colorchord2/main.c
+++ b/colorchord2/main.c
@@ -516,14 +516,14 @@ int main( int argc, char **argv )
 
 				CNFGColor( LINE_COLOR );
 				// Let's draw the o-scope.
-				int thissoundhead = ( soundhead - 1 + SOUNDCBSIZE ) % SOUNDCBSIZE;
 				int lasty;
+				int thissoundhead = ( soundhead - 1 + SOUNDCBSIZE ) % SOUNDCBSIZE;
 				int thisy = sound[ thissoundhead ] * -128 + 128;
 				for ( int i = screenx - 1; i > 0; i-- )
 				{
 					lasty = thisy;
-					thisy = sound[ thissoundhead ] * -128 + 128;
 					thissoundhead = ( thissoundhead - 1 + SOUNDCBSIZE ) % SOUNDCBSIZE;
+					thisy = sound[ thissoundhead ] * -128 + 128;
 					CNFGTackSegment( i, lasty, i - 1, thisy );
 				}
 			}