diff --git a/static/js/chart_controls.js b/static/js/chart_controls.js
index 69c8199..47e6135 100644
--- a/static/js/chart_controls.js
+++ b/static/js/chart_controls.js
@@ -62,16 +62,16 @@ document.addEventListener("DOMContentLoaded", function () {
     toggleCategory?.addEventListener("click", function () {
         const active = this.classList.contains("btn-primary");
         if (active) {
-            this.classList.remove("btn-primary");
+            this.classList.remove("btn-outline-light");
             this.classList.add("btn-outline-light");
             this.setAttribute("aria-pressed", "false");
-            this.textContent = "Kategorie";
+            this.textContent = "Przełącz na kategorie";
             window.setCategorySplit(false);
         } else {
-            this.classList.add("btn-primary");
+            this.classList.add("outline-light");
             this.classList.remove("btn-outline-light");
             this.setAttribute("aria-pressed", "true");
-            this.textContent = "Sumy";
+            this.textContent = "Przełącz na sumy";
             window.setCategorySplit(true);
         }
 
diff --git a/templates/expenses.html b/templates/expenses.html
index e231606..b782964 100644
--- a/templates/expenses.html
+++ b/templates/expenses.html
@@ -145,7 +145,7 @@
               </div>
               <div>
                 <h6 class="text-white">Kategorie/Sumy wydatków</h6>
-                <button class="btn btn-outline-light btn-sm" id="toggleCategorySplit" aria-pressed="false">Kategorie</button>
+                <button class="btn btn-outline-light btn-sm" id="toggleCategorySplit" aria-pressed="false">Przełącz na kategorie</button>
               </div>
             </div>