1 files changed, 2 insertions, 1 deletions
diff --git a/src/third_party/wiredtiger/test/cppsuite/test_harness/workload/random_generator.cxx b/src/third_party/wiredtiger/test/cppsuite/test_harness/workload/random_generator.cxx
index c539fbc34fc..3973af7242c 100644
--- a/src/third_party/wiredtiger/test/cppsuite/test_harness/workload/random_generator.cxx
+++ b/src/third_party/wiredtiger/test/cppsuite/test_harness/workload/random_generator.cxx
@@ -44,10 +44,11 @@ random_generator::instance()
 std::string
 random_generator::generate_random_string(std::size_t length, characters_type type)
 {
+    const std::string characters = get_characters(type);
     std::string str;
 
     while (str.size() < length)
-        str += get_characters(type);
+        str += characters;
 
     std::shuffle(str.begin(), str.end(), _generator);
     return (str.substr(0, length));