diff --git a/mario/editor.cpp b/mario/editor.cpp
index f378f2a..9fd5e0e 100644
--- a/mario/editor.cpp
+++ b/mario/editor.cpp
@@ -172,9 +172,9 @@ void pollEvents( SDLPP::Scene &scene ) {
                 }
             }
             if(current_tool_box.getX() != -1) {
-                auto index = current_tool_index + current_tool_box.getY() * 4 + current_tool_box.getX();
+                auto index = current_tool_box.getY() * 4 + current_tool_box.getX();
                 if(index < tools.size()) {
-                    current_block = (current_tool_index * 8 - 1) + index;
+                    current_block = current_tool_index * 8 + index;
                     updateTool();
                 }
             }