diff --git a/pygobject2.spec b/pygobject2.spec
index b606154..5a0b372 100644
--- a/pygobject2.spec
+++ b/pygobject2.spec
@@ -70,6 +70,8 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
 find $RPM_BUILD_ROOT -name '*.a' -delete
 rm examples/Makefile*
 
+sed -r -i 's|#! ?/usr/bin/env python|#!%{__python2}|' %{buildroot}/usr/share/pygobject/2.0/codegen/*.py
+
 %ldconfig_scriptlets
 
 %files
@@ -101,6 +103,9 @@ rm examples/Makefile*
 %{_datadir}/pygobject/xsl
 
 %changelog
+* Wed Mar  6 2019 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 2.28.7-5
+- Mangle shebangs to fix build
+
 * Sat Feb 02 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.28.7-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild