diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index b5078d65704ee..4a63843f623c4 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -125,8 +125,9 @@
 	from PySide.QtGui import *
 	from PySide.QtSql import *
 
-from decimal import *
-from ctypes import *
+from decimal import Decimal, ROUND_HALF_UP
+from ctypes import CDLL, Structure, create_string_buffer, addressof, sizeof, \
+		   c_void_p, c_bool, c_byte, c_char, c_int, c_uint, c_longlong, c_ulonglong
 from multiprocessing import Process, Array, Value, Event
 
 # xrange is range in Python3