diff --git a/dlls/kernelbase/tests/process.c b/dlls/kernelbase/tests/process.c
index 7aa07df6e4e..a28411f4e5b 100644
--- a/dlls/kernelbase/tests/process.c
+++ b/dlls/kernelbase/tests/process.c
@@ -63,7 +63,7 @@ static void test_CompareObjectHandles(void)
 
     CloseHandle( h1 );
 
-    h1 = CreateFileA( "\\\\.\\NUL", GENERIC_ALL, 0, NULL, OPEN_EXISTING, 0, 0 );
+    h1 = CreateFileA( "\\\\.\\NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0 );
     ok( h1 != INVALID_HANDLE_VALUE, "CreateFile failed (%d)\n", GetLastError() );
 
     h2 = NULL;
@@ -76,7 +76,7 @@ static void test_CompareObjectHandles(void)
 
     CloseHandle( h2 );
 
-    h2 = CreateFileA( "\\\\.\\NUL", GENERIC_ALL, 0, NULL, OPEN_EXISTING, 0, 0 );
+    h2 = CreateFileA( "\\\\.\\NUL", GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, 0 );
     ok( h2 != INVALID_HANDLE_VALUE, "CreateFile failed (%d)\n", GetLastError() );
 
     SetLastError(0);