diff --git a/test/simulator/hei_sim_main.cpp b/test/simulator/hei_sim_main.cpp
index 58784d0..c2bb24e 100644
--- a/test/simulator/hei_sim_main.cpp
+++ b/test/simulator/hei_sim_main.cpp
@@ -4,7 +4,7 @@
 {
     using namespace libhei;
 
-    void* buffer = nullptr;
+    void* buffer     = nullptr;
     size_t sz_buffer = 0;
 
     initialize(buffer, sz_buffer);