diff --git a/apple/nibutil.cpp b/apple/nibutil.cpp
index e2f1f0d..0d5673b 100644
--- a/apple/nibutil.cpp
+++ b/apple/nibutil.cpp
@@ -283,12 +283,12 @@ nibErr denibblizeTrack(const uint8_t input[NIBTRACKSIZE], uint8_t rawTrackBuffer
 
   // loop through the data twice, so we make sure we read anything 
   // that crosses the end/start boundary
-  uint16_t startOfSector;
+  //  uint16_t startOfSector;
   for (uint16_t i=0; i<2*416*16; i++) {
     // Find the prolog
     if (input[i % NIBTRACKSIZE] != 0xD5)
       continue;
-    startOfSector = i;
+    //    startOfSector = i;
     i++;
     if (input[i % NIBTRACKSIZE] != 0xAA)
       continue;