diff --git a/reactos/dll/win32/shell32/shlexec.cpp b/reactos/dll/win32/shell32/shlexec.cpp
index 51f2d7f5e98..ad53a037c45 100644
--- a/reactos/dll/win32/shell32/shlexec.cpp
+++ b/reactos/dll/win32/shell32/shlexec.cpp
@@ -1501,7 +1501,7 @@ static UINT_PTR SHELL_quote_and_execute(LPCWSTR wcmd, LPCWSTR wszParameters, LPC
     strcatW(wszQuotedCmd, L"\"");
     if (wszParameters[0])
     {
-        strcatW(wszQuotedCmd, " ");
+        strcatW(wszQuotedCmd, L" ");
         strcatW(wszQuotedCmd, wszParameters);
     }