diff --git a/include/fc/sha1.hpp b/include/fc/sha1.hpp
index 30204b8..d4459b1 100644
--- a/include/fc/sha1.hpp
+++ b/include/fc/sha1.hpp
@@ -29,6 +29,7 @@ namespace fc {
           ~encoder();
 
           void write( const char* d, uint32_t dlen );
+          void put( char c ) { write( &c, 1 ); }
           void reset();
           sha1 result();