diff --git a/Makefile.am b/Makefile.am
index 7b53fd0e..28f7f8f9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -27,7 +27,7 @@ dist_pkgdata_DATA = \
 check-local: test-pacman test-pacsort test-vercmp test-parseopts
 
 test-pacman: test/pacman src/pacman
-	LC_ALL=C $(PYTHON) $(top_srcdir)/test/pacman/pactest.py --debug=1 \
+	$(PYTHON) $(top_srcdir)/test/pacman/pactest.py --debug=1 \
 		--test $(top_srcdir)/test/pacman/tests/*.py \
 		--scriptlet-shell $(SCRIPTLET_SHELL) \
 		--ldconfig $(LDCONFIG) \
diff --git a/test/pacman/pmtest.py b/test/pacman/pmtest.py
index 2eafe682..f5a96805 100644
--- a/test/pacman/pmtest.py
+++ b/test/pacman/pmtest.py
@@ -241,7 +241,7 @@ class pmtest(object):
         # archives are made available more easily.
         time_start = time.time()
         self.retcode = subprocess.call(cmd, stdout=output, stderr=output,
-                cwd=os.path.join(self.root, util.TMPDIR))
+                cwd=os.path.join(self.root, util.TMPDIR), env={'LC_ALL': 'C'})
         time_end = time.time()
         vprint("\ttime elapsed: %.2fs" % (time_end - time_start))