diff --git a/test/TestRunner.sh b/test/TestRunner.sh
index e595527b8b3..68091c2188b 100755
--- a/test/TestRunner.sh
+++ b/test/TestRunner.sh
@@ -13,7 +13,8 @@
 FILENAME=$1
 TESTNAME=$1
 SUBST=$1
-OUTPUT=Output/$FILENAME.out
+FILENAME_ONLY=`basename $1`
+OUTPUT=Output/$FILENAME_ONLY.out
 
 # create the output directory if it does not already exist
 mkdir Output > /dev/null 2>&1