diff --git a/tools/cachetop.py b/tools/cachetop.py
index 59de391..00b11a8 100755
--- a/tools/cachetop.py
+++ b/tools/cachetop.py
@@ -107,7 +107,7 @@
             misses = (apcl + apd)
 
             # rtaccess is the read hit % during the sample period.
-            # wtaccess is the write hit % during the smaple period.
+            # wtaccess is the write hit % during the sample period.
             if mpa > 0:
                 rtaccess = float(mpa) / (access + misses)
             if apcl > 0: