diff --git a/src/core/lib/experiments/config.cc b/src/core/lib/experiments/config.cc
index d0cd7419a1c..e83be847389 100644
--- a/src/core/lib/experiments/config.cc
+++ b/src/core/lib/experiments/config.cc
@@ -68,7 +68,7 @@ class TestExperiments {
  public:
   TestExperiments(const ExperimentMetadata* experiment_metadata,
                   size_t num_experiments)
-      : enabled_(num_experiments, false) {
+      : enabled_(num_experiments) {
     for (size_t i = 0; i < num_experiments; i++) {
       if (g_check_constraints_cb != nullptr) {
         enabled_[i] = (*g_check_constraints_cb)(experiment_metadata[i]);