Fix format specifier for DWORD

ruby · May 9, 2024 · d656461 · d656461
1 parent d224bfd
commit d656461
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/io_buffer.c b/io_buffer.c
@@ -260,7 +260,7 @@ io_buffer_free(struct rb_io_buffer *buffer)
     if (buffer->mapping) {
         if (RB_IO_BUFFER_DEBUG) fprintf(stderr, "io_buffer_free:CloseHandle -> %p\n", buffer->mapping);
         if (!CloseHandle(buffer->mapping)) {
-            fprintf(stderr, "io_buffer_free:GetLastError -> %d\n", GetLastError());
+            fprintf(stderr, "io_buffer_free:GetLastError -> %lu\n", GetLastError());
         }
         buffer->mapping = NULL;
     }