diff --git a/renderdocshim/renderdocshim.cpp b/renderdocshim/renderdocshim.cpp
index 1d0c87b0e..184e0141d 100644
--- a/renderdocshim/renderdocshim.cpp
+++ b/renderdocshim/renderdocshim.cpp
@@ -94,8 +94,7 @@ void CheckHook()
   if(exepath)
   {
     // no memset :).
-    for(int i = 0; i < exepathLen; i++)
-      exepath[i] = 0;
+    SecureZeroMemory(exepath, exepathLen);
 
     GetModuleFileNameW(NULL, exepath, exepathLen - 1);