diff --git a/lib/Makefile.netware b/lib/Makefile.netware
index 655c7e3e7..9a14201bc 100644
--- a/lib/Makefile.netware
+++ b/lib/Makefile.netware
@@ -424,6 +424,7 @@ ifeq ($(LIBARCH),CLIB)
 	@echo $(DL)#define SEND_TYPE_ARG3 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV int$(DL) >> $@
+	@echo $(DL)#define SIZEOF_SIZE_T 4$(DL) >> $@
 	@echo $(DL)#define pressanykey PressAnyKeyToContinue$(DL) >> $@
 else
 	@echo $(DL)#define OS "i586-pc-libc-NetWare"$(DL) >> $@
@@ -459,6 +460,7 @@ else
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV ssize_t$(DL) >> $@
 	@echo $(DL)#define SIZEOF_OFF_T 8$(DL) >> $@
+	@echo $(DL)#define SIZEOF_SIZE_T 8$(DL) >> $@
 	@echo $(DL)#define _LARGEFILE 1$(DL) >> $@
 ifdef ENABLE_IPV6
 	@echo $(DL)#define ENABLE_IPV6 1$(DL) >> $@
diff --git a/src/Makefile.netware b/src/Makefile.netware
index 3f5802ce4..654ddf50b 100644
--- a/src/Makefile.netware
+++ b/src/Makefile.netware
@@ -418,6 +418,7 @@ ifeq ($(LIBARCH),CLIB)
 	@echo $(DL)#define SEND_TYPE_ARG3 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV int$(DL) >> $@
+	@echo $(DL)#define SIZEOF_SIZE_T 4$(DL) >> $@
 	@echo $(DL)#define pressanykey PressAnyKeyToContinue$(DL) >> $@
 else
 	@echo $(DL)#define OS "i586-pc-libc-NetWare"$(DL) >> $@
@@ -453,6 +454,7 @@ else
 	@echo $(DL)#define SEND_TYPE_ARG4 int$(DL) >> $@
 	@echo $(DL)#define SEND_TYPE_RETV ssize_t$(DL) >> $@
 	@echo $(DL)#define SIZEOF_OFF_T 8$(DL) >> $@
+	@echo $(DL)#define SIZEOF_SIZE_T 8$(DL) >> $@
 	@echo $(DL)#define _LARGEFILE 1$(DL) >> $@
 ifdef ENABLE_IPV6
 	@echo $(DL)#define ENABLE_IPV6 1$(DL) >> $@