diff --git a/configure.ac b/configure.ac
index a3cdb2da..cade9466 100644
--- a/configure.ac
+++ b/configure.ac
@@ -469,11 +469,11 @@ PKG_CHECK_EXISTS([pygobject-3.0 >= $PYGOBJECT_REQUIRED],
 if test "x$enable_pygobject" = "xyes"; then
     PKG_CHECK_MODULES(PYTHON, [pygobject-3.0 >= $PYGOBJECT_REQUIRED])
 
-    pyoverridesdir=`$PYTHON -c "import gi; print(gi._overridesdir)"`
+    pyoverridesdir="$prefix/@pythonSitePackages@/gi/overrides"
     AC_SUBST(pyoverridesdir)
 
     if test x"$enable_python2" = x"yes"; then
-        py2overridesdir=`$PYTHON2 -c "import gi; print(gi._overridesdir)"`
+        py2overridesdir="$prefix/@pythonSitePackages@/gi/overrides"
         AC_SUBST(py2overridesdir)
     fi
 fi
@@ -502,7 +502,7 @@ if test x"$enable_python_library" = x"yes"; then
     PYTHON2_VERSION=`$PYTHON2 -c "import sys; sys.stdout.write(sys.version[[:3]])"`
     PYTHON2_LIBDIR="$PYTHON2_PREFIX/lib/python$PYTHON2_VERSION"
     python2dir="$PYTHON2_LIBDIR/site-packages"
-    pkgpython2dir="$python2dir/ibus"
+    pkgpython2dir="$prefix/@pythonSitePackages@/ibus"
     AC_SUBST(pkgpython2dir)
 else
     enable_python_library="no (disabled, use --enable-python-library to enable)"
diff --git a/data/dconf/Makefile.am b/data/dconf/Makefile.am
index 5360f033..6d5e726f 100644
--- a/data/dconf/Makefile.am
+++ b/data/dconf/Makefile.am
@@ -50,7 +50,7 @@ man_5dir = $(mandir)/man5
 
 install-data-hook:
 	if test -z "$(DESTDIR)"; then \
-	    dconf update; \
+	    true; \
 	fi
 
 EXTRA_DIST = \
diff --git a/setup/ibus-setup.in b/setup/ibus-setup.in
index 474ce8a8..ee30808e 100644
--- a/setup/ibus-setup.in
+++ b/setup/ibus-setup.in
@@ -27,5 +27,5 @@ export IBUS_PREFIX=@prefix@
 export IBUS_DATAROOTDIR=@datarootdir@
 export IBUS_LOCALEDIR=@localedir@
 export IBUS_LIBEXECDIR=${libexecdir}
-exec ${PYTHON:-@PYTHON@} @prefix@/share/ibus/setup/main.py "$@"
+exec @pythonInterpreter@ @prefix@/share/ibus/setup/main.py "$@"