diff --git a/src/include/ngspice/cpdefs.h b/src/include/ngspice/cpdefs.h
index 4adeb6c6b..00ba6908e 100644
--- a/src/include/ngspice/cpdefs.h
+++ b/src/include/ngspice/cpdefs.h
@@ -13,8 +13,6 @@ Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
 
 #include "ngspice/cpstd.h"
 
-#define MAXWORDS 512
-
 /* Information about spice commands. */
 
 struct comm {