diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 71c68d7b24a9d839880ddd94ca3fe44dbf969093..15c523731bdcb6129710e30b4c5fd06ec967a386 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -45,7 +45,7 @@ class CLanguage(object):
     self.allow_hashing = True
     self.make_target = make_target
     with open('tools/run_tests/tests.json') as f:
-      js = json.loads(f.read())
+      js = json.load(f)
       self.binaries = [tgt['name'] 
                        for tgt in js 
                        if tgt['language'] == test_lang]