diff --git a/include/libbb.h b/include/libbb.h
index e9a828c..cf62a8c 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -50,6 +50,8 @@
 # include "sha1.h"
 #endif
 
+#define _STDIO_USES_IOSTREAM
+
 /* Convenience macros to test the version of gcc. */
 #if defined __GNUC__ && defined __GNUC_MINOR__
 # define __GNUC_PREREQ(maj, min) \