diff --git a/tools/run_tests.py b/tools/run_tests.py
index 01cd98eb1..ab5a69c2e 100755
--- a/tools/run_tests.py
+++ b/tools/run_tests.py
@@ -232,7 +232,7 @@ def main(argv):
 
 	# it takes a bit longer to run in valgrind
 	if 'launcher=valgrind' in options:
-		time_limit *= 2
+		time_limit *= 6
 
 	architecture = platform.machine()
 	build_platform = platform.system() + '-' + platform.release()