diff --git a/src/openbox.cc b/src/openbox.cc
index 75d56041..7a025242 100644
--- a/src/openbox.cc
+++ b/src/openbox.cc
@@ -155,7 +155,7 @@ Openbox::Openbox(int argc, char **argv)
   if (!rcpyfd) {
     printf("failed to load python file %s\n", _scriptfilepath.c_str());
   } else {
-    PyRun_SimpleFile(rcpyfd, _scriptfilepath.c_str());
+    PyRun_SimpleFile(rcpyfd, const_cast<char*>(_scriptfilepath.c_str()));
     fclose(rcpyfd);
   }