diff --git a/bin/flick-armcontrol b/bin/flick-armcontrol
index a511c35..c242184 100644
--- a/bin/flick-armcontrol
+++ b/bin/flick-armcontrol
@@ -107,9 +107,9 @@ def main(stdscr):
     exittxt = 'Control-C to exit'
     title = '**** Maplin Robotic Arm Control  ****'
     Instr = '**** Instructions ****'
-    stdscr.addstr( 0, (curses.COLS - len(title)) / 2, title)
-    stdscr.addstr( 9, (curses.COLS - len(exittxt)) / 2, exittxt)
-    stdscr.addstr( 11, (curses.COLS - len(Instr)) / 2, Instr)
+    stdscr.addstr( 0, (curses.COLS - len(title)) // 2, title)
+    stdscr.addstr( 9, (curses.COLS - len(exittxt)) // 2, exittxt)
+    stdscr.addstr( 11, (curses.COLS - len(Instr)) // 2, Instr)
     stdscr.refresh()
 
     datawin = curses.newwin( 6, curses.COLS - 6,  2, 3)
diff --git a/bin/flick-snail b/bin/flick-snail
index bac8117..b15a5a6 100644
--- a/bin/flick-snail
+++ b/bin/flick-snail
@@ -51,8 +51,8 @@ def main(stdscr):
     # Add title and footer
     exittxt = 'Control-C to exit'
     title = '**** Flick Demo ****'
-    stdscr.addstr( 0, (curses.COLS - len(title)) / 2, title)
-    stdscr.addstr(22, (curses.COLS - len(exittxt)) / 2, exittxt)
+    stdscr.addstr( 0, (curses.COLS - len(title)) // 2, title)
+    stdscr.addstr(22, (curses.COLS - len(exittxt)) // 2, exittxt)
     stdscr.refresh()
 
     datawin = curses.newwin( 8, curses.COLS - 6,  2, 3)
diff --git a/bin/flick-volctrl b/bin/flick-volctrl
index 84b1edd..b96a4c7 100644
--- a/bin/flick-volctrl
+++ b/bin/flick-volctrl
@@ -40,9 +40,9 @@ def main(stdscr):
     exittxt = 'Control-C to exit'
     errortxt = ''
     title = '**** Volume control ****'
-    stdscr.addstr( 0, (curses.COLS - len(title)) / 2, title)
-    stdscr.addstr(10, (curses.COLS - len(exittxt)) / 2, exittxt)
-    stdscr.addstr(22, (0 - len(errortxt)) / 2, errortxt)
+    stdscr.addstr( 0, (curses.COLS - len(title)) // 2, title)
+    stdscr.addstr(10, (curses.COLS - len(exittxt)) // 2, exittxt)
+    stdscr.addstr(22, (0 - len(errortxt)) // 2, errortxt)
     stdscr.refresh()
 
     # Setup the mixer