diff --git a/include/SWI-Prolog.h b/include/SWI-Prolog.h
index a90e550d8..afb632bb7 100755
--- a/include/SWI-Prolog.h
+++ b/include/SWI-Prolog.h
@@ -149,7 +149,7 @@ typedef unsigned long uintptr_t;
 #endif
 
 #ifndef PL_HAVE_TERM_T
-#define PL_HAVE_TERM_Temacs
+#define PL_HAVE_TERM_T
 typedef	intptr_t    term_t;
 #endif
 typedef	struct mod_entry *module_t;