diff --git a/topstat.py b/topstat.py
index 189cd97..7bd78b4 100644
--- a/topstat.py
+++ b/topstat.py
@@ -106,6 +106,9 @@ def runtopstat():
         total_processes = processes[0]
         running = processes[1]
 
+        sleeping = 0
+        zombie = 0
+
         try:
             sleeping = processes[2]
         except IndexError: