diff --git a/sdk/lib/rtl/actctx.c b/sdk/lib/rtl/actctx.c
index 3768f7201b4..4cf9bbaa4bd 100644
--- a/sdk/lib/rtl/actctx.c
+++ b/sdk/lib/rtl/actctx.c
@@ -3222,7 +3222,8 @@ static struct string_index *find_string_index(const struct strsection_header *se
         {
             const WCHAR *nameW = (WCHAR*)((BYTE*)section + iter->name_offset);
 
-            if (!strcmpiW(nameW, name->Buffer))
+            if (!_wcsnicmp(nameW, name->Buffer, name->Length / sizeof(WCHAR)) && 
+                wcslen(nameW) == name->Length / sizeof(WCHAR))
             {
                 index = iter;
                 break;