diff --git a/frontend/src/html/pages/test.html b/frontend/src/html/pages/test.html
index 7a98316ac..dae4a4244 100644
--- a/frontend/src/html/pages/test.html
+++ b/frontend/src/html/pages/test.html
@@ -321,6 +321,7 @@
               aria-label="Copy words list"
               data-balloon-pos="up"
               style="display: inline-block"
+              tabindex="-1"
             >
               <i class="fas fa-fw fa-align-left"></i>
             </button>
@@ -329,6 +330,7 @@
               class="textButton"
               aria-label="Copy missed words list"
               data-balloon-pos="up"
+              tabindex="-1"
             >
               <i class="fas fa-fw fa-times"></i>
             </button>
@@ -338,6 +340,7 @@
               aria-label="Toggle burst heatmap"
               data-balloon-pos="up"
               style="display: inline-block"
+              tabindex="-1"
             >
               <i class="fas fa-fw fa-fire-alt"></i>
             </button>
@@ -362,6 +365,7 @@
               aria-label="Start replay"
               data-balloon-pos="up"
               style="display: inline-block"
+              tabindex="-1"
             >
               <i class="fas fa-play"></i>
             </button>