--- a/pinentry/pinentry-curses.c
+++ b/pinentry/pinentry-curses.c
@@ -156,8 +156,10 @@ pinentry_utf8_to_local (const char *lc_c
     {
       if (! lc_ctype_unknown_warning)
 	{
+#ifndef __ANDROID__
 	  fprintf (stderr, "%s: no LC_CTYPE known - assuming UTF-8\n",
 		   pgmname);
+#endif
 	  lc_ctype_unknown_warning = 1;
 	}
       return strdup (text);
@@ -223,8 +225,10 @@ pinentry_local_to_utf8 (char *lc_ctype,
     {
       if (! lc_ctype_unknown_warning)
 	{
+#ifndef __ANDROID__
 	  fprintf (stderr, "%s: no LC_CTYPE known - assuming UTF-8\n",
 		   pgmname);
+#endif
 	  lc_ctype_unknown_warning = 1;
 	}
       output_buf = secure? secmem_malloc (input_len) : malloc (input_len);
