diff --git a/test/jsrun.py b/test/jsrun.py
index 9cffe16da6df9..88015b40088d2 100644
--- a/test/jsrun.py
+++ b/test/jsrun.py
@@ -15,7 +15,7 @@
 from tools import utils
 
 WORKING_ENGINES = {} # Holds all configured engines and whether they work: maps path -> True/False
-DEFAULT_TIMEOUT = 5 * 60
+DEFAULT_TIMEOUT = int(os.environ.get('EMTEST_TIMEOUT', str(5 * 60)))
 
 
 def make_command(filename, engine, args=None):