diff --git a/core/os/file_windows.odin b/core/os/file_windows.odin
index 099a7e863..9b1050cb0 100644
--- a/core/os/file_windows.odin
+++ b/core/os/file_windows.odin
@@ -239,6 +239,7 @@ pread :: proc(fd: Handle, data: []byte, offset: i64) -> (int, Errno) {
 
 	h := win32.HANDLE(fd)
 	done: win32.DWORD
+	e: Errno
 	if !win32.ReadFile(h, raw_data(buf), u32(len(buf)), &done, &o) {
 		e = Errno(win32.GetLastError())
 		done = 0
@@ -265,6 +266,7 @@ pwrite :: proc(fd: Handle, data: []byte, offset: i64) -> (int, Errno) {
 
 	h := win32.HANDLE(fd)
 	done: win32.DWORD
+	e: Errno
 	if !win32.WriteFile(h, raw_data(buf), u32(len(buf)), &done, &o) {
 		e = Errno(win32.GetLastError())
 		done = 0