--- a/alpine/imap.c
+++ b/alpine/imap.c
@@ -51,6 +51,10 @@
#include "../pith/smime.h"
#endif /* SMIME */
+#ifdef __ANDROID__
+#include <sys/endian.h>
+#endif
+
#if (WINCRED > 0)
#include <wincred.h>
#define TNAME "UWash_Alpine_"