diff --git a/unit_tests/expr.suite/llfrand-1.out b/unit_tests/expr.suite/llfrand-1.out
index 77bef8f..9ace17d 100644
--- a/unit_tests/expr.suite/llfrand-1.out
+++ b/unit_tests/expr.suite/llfrand-1.out
@@ -1,2 +1,2 @@
 REGEX
-[[,] [0-9]{7}\.[0-9]*
\ No newline at end of file
+[\[,] [0-9]{7}\.[0-9]*
\ No newline at end of file
diff --git a/unit_tests/expr.suite/llfrand-2.out b/unit_tests/expr.suite/llfrand-2.out
index 66c6f34..3f22864 100644
--- a/unit_tests/expr.suite/llfrand-2.out
+++ b/unit_tests/expr.suite/llfrand-2.out
@@ -1,2 +1,2 @@
 REGEX
-[[,] [0-9]{8}\.[0-9]*
\ No newline at end of file
+[\[,] [0-9]{8}\.[0-9]*
\ No newline at end of file