1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstd/sys/windows/os.rs b/src/libstd/sys/windows/os.rs
index c5354671c98..cc4ae405906 100644
--- a/src/libstd/sys/windows/os.rs
+++ b/src/libstd/sys/windows/os.rs
@@ -43,7 +43,7 @@ pub fn error_string(mut errnum: i32) -> String {
             ];
             module = c::GetModuleHandleW(NTDLL_DLL.as_ptr());
 
-            if module != ptr::null_mut() {
+            if !module.is_null() {
                 errnum ^= c::FACILITY_NT_BIT as i32;
                 flags = c::FORMAT_MESSAGE_FROM_HMODULE;
             }