diff --git a/win32/Lib/win32pdhquery.py b/win32/Lib/win32pdhquery.py
index 75f019a773..bda1665f0a 100644
--- a/win32/Lib/win32pdhquery.py
+++ b/win32/Lib/win32pdhquery.py
@@ -496,7 +496,7 @@ def collectdatafor(self, totalperiod, period=1):
         tempresults = []
         try:
             self.open()
-            for ind in range(totalperiod / period):
+            for ind in range(int(totalperiod / period)):
                 tempresults.append(self.collectdata())
                 time.sleep(period)
             self.curresults = tempresults