diff --git a/configure.py b/configure.py
index 9ee62de..54f4e53 100644
--- a/configure.py
+++ b/configure.py
@@ -624,7 +624,7 @@ def generate_code(mname, imports=None, extra_cflags=None, extra_cxxflags=None, e
 
     pyqtInclPathSeen = 0
     for mod in pytde_imports [mname]:
-        if string.find (mod, "PyTQt.q") == 0 and not pyqtInclPathSeen:
+        if mod.find("PyTQt.q") == 0 and not pyqtInclPathSeen:
             argv.append ("-I")
             argv.append (pyqtcfg.pyqt_sip_dir)
             pyqtInclPathSeen = 1