diff --git a/chamberconnectlibrary/watlowf4.py b/chamberconnectlibrary/watlowf4.py
index c3854d8..573a346 100644
--- a/chamberconnectlibrary/watlowf4.py
+++ b/chamberconnectlibrary/watlowf4.py
@@ -672,7 +672,7 @@ def get_prgm_time(self, pgm=None):
                 stepi += 1
         rtime[1] += int(rtime[2]/60)
         rtime[2] = int(rtime[2]%60)
-        rtime[0] += int(rtime[2]/60)
+        rtime[0] += int(rtime[1]/60)
         rtime[1] = int(rtime[1]%60)
         return '%d:%02d:%02d' % tuple(rtime)