diff --git a/category/get_perf_info.py b/category/get_perf_info.py
index a1daa30a83599c6025d8fc09a9828ee7fc190b27..2d448a67e8b0eaffcd934511defb8b0bcdbef1bd 100644
--- a/category/get_perf_info.py
+++ b/category/get_perf_info.py
@@ -405,7 +405,7 @@ class OffCPU():
         if not self.__check_offcpu_command():
             return False
 
-        return true
+        return True
 
     def __offcputime_execute(self):
         offcputime_cmd = '{} -df -p {} {} > {} 2> {}'.format(self.offcputime_tool, self.__pid, \