diff --git a/src/system.h b/src/system.h
index 36652456..56c4ef3a 100644
--- a/src/system.h
+++ b/src/system.h
@@ -63,7 +63,6 @@
 #define N_(Text) Text
 
 /* In the meantime, waiting for Automake.  */
-#define PACKAGE "bison"
 #define LOCALEDIR "/usr/local/share/locale"
 
 #endif  /* BISON_SYSTEM_H */