diff --git a/run_tests.sh b/run_tests.sh
index 1b6551ac..7238da53 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -18,7 +18,7 @@ command -v tox > /dev/null 2>&1
 if [ $? -ne 0 ]; then
   echo 'This script requires "tox" to run.'
   echo 'You can install it with "pip install tox".'
-  exit 1; 
+  exit 1;
 fi
 
 just_pep8=0