diff --git a/gupnp.spec b/gupnp.spec
index 07f355e..3e7dc9c 100644
--- a/gupnp.spec
+++ b/gupnp.spec
@@ -1,6 +1,6 @@
 Name:          gupnp
 Version:       1.0.2
-Release:       5%{?dist}
+Release:       6%{?dist}
 Summary:       A framework for creating UPnP devices & control points
 
 License:       LGPLv2+
@@ -40,13 +40,13 @@ This package contains developer documentation for %{name}.
 %prep
 %setup -q
 
+# Use Python 3
+sed -i '1s|^#! /usr/bin/env python$|#!/usr/bin/python3|' tools/gupnp-binding-tool
+
 %build
 %configure --disable-static --with-context-manager=network-manager
 make %{?_smp_mflags} V=1
 
-# Use Python 3
-sed -i '1s|^#! /usr/bin/python$|#!/usr/bin/python3|' tools/gupnp-binding-tool
-
 %install
 %make_install
 
@@ -78,6 +78,10 @@ make check %{?_smp_mflags} V=1
 %doc %{_datadir}/gtk-doc/html/%{name}
 
 %changelog
+* Thu Jun 07 2018 Bastien Nocera <bnocera@redhat.com> - 1.0.2-6
++ gupnp-1.0.2-6
+- Fix Python3 substitution, and make it earlier
+
 * Thu Feb 15 2018 Bastien Nocera <bnocera@redhat.com> - 1.0.2-5
 + gupnp-1.0.2-5
 - Remove unused NetworkManager-devel BR