diff --git a/testing/run_regressions.sh b/testing/run_regressions.sh
index 4dbbc19d..d6facccd 100755
--- a/testing/run_regressions.sh
+++ b/testing/run_regressions.sh
@@ -262,6 +262,12 @@ if [ "${SUITE}" = "all" ]; then
 else
   echo "Running $SUITE"
   REGRESSION="tests/${SUITE}"
+
+  if [ ! -d $REGRESSION ]; then
+    echo "There is no test suite called $SUITE, have you made a mistake?"
+    exit 0
+  fi
+
   run_regression_suite "${SUITE}"
 fi
 TFINISH="`date +%s`"