diff --git a/util/ceg/defaults/message/C_cst.c b/util/ceg/defaults/message/C_cst.c
index 0118528b8..70b3cd63d 100644
--- a/util/ceg/defaults/message/C_cst.c
+++ b/util/ceg/defaults/message/C_cst.c
@@ -6,6 +6,7 @@
 extern int __db_mes, __db_cst, __db_len, __db_type, __db_add;
 extern char *__db_str;
 
+void
 C_cst( l)
 arith l;
 {
diff --git a/util/ceg/defaults/message/C_dlb.c b/util/ceg/defaults/message/C_dlb.c
index a6da60a99..814d8ed5e 100644
--- a/util/ceg/defaults/message/C_dlb.c
+++ b/util/ceg/defaults/message/C_dlb.c
@@ -5,6 +5,7 @@
 extern int __db_mes, __db_len, __db_type, __db_add;
 extern char *__db_str;
 
+void
 C_dlb( l, val)
 label l;
 arith val;
diff --git a/util/ceg/defaults/message/C_dnam.c b/util/ceg/defaults/message/C_dnam.c
index 5a9cac4d8..731705b50 100644
--- a/util/ceg/defaults/message/C_dnam.c
+++ b/util/ceg/defaults/message/C_dnam.c
@@ -5,6 +5,7 @@
 extern int __db_mes, __db_len, __db_type, __db_add;
 extern char *__db_str;
 
+void
 C_dnam( str, val)
 char *str;
 arith val;
diff --git a/util/ceg/defaults/message/C_fcon.c b/util/ceg/defaults/message/C_fcon.c
index 02b702bf1..fe19d570f 100644
--- a/util/ceg/defaults/message/C_fcon.c
+++ b/util/ceg/defaults/message/C_fcon.c
@@ -1,6 +1,7 @@
 #define CODE_EXPANDER
 #include <em.h>
 
+void
 C_fcon( val, siz)
 char *val;
 arith siz;
diff --git a/util/ceg/defaults/message/C_icon.c b/util/ceg/defaults/message/C_icon.c
index 2db03ef1c..6189f4e0c 100644
--- a/util/ceg/defaults/message/C_icon.c
+++ b/util/ceg/defaults/message/C_icon.c
@@ -1,6 +1,7 @@
 #define CODE_EXPANDER
 #include <em.h>
 
+void
 C_icon( val, siz)
 char *val;
 arith siz;
diff --git a/util/ceg/defaults/message/C_ilb.c b/util/ceg/defaults/message/C_ilb.c
index 091feb6f8..b87d33e42 100644
--- a/util/ceg/defaults/message/C_ilb.c
+++ b/util/ceg/defaults/message/C_ilb.c
@@ -7,6 +7,7 @@ extern char *__db_str;
 
 extern int B_procno;
 
+void
 C_ilb( l)
 label l;
 {
diff --git a/util/ceg/defaults/message/C_mes_begin.c b/util/ceg/defaults/message/C_mes_begin.c
index dedcbf85a..0f4b1c632 100644
--- a/util/ceg/defaults/message/C_mes_begin.c
+++ b/util/ceg/defaults/message/C_mes_begin.c
@@ -9,6 +9,7 @@ int __db_cst = 0;
 int __db_type;
 int __db_add;
 
+void
 C_mes_begin( ms)
 int ms;
 {
diff --git a/util/ceg/defaults/message/C_mes_end.c b/util/ceg/defaults/message/C_mes_end.c
index cf303b732..ad7583ae4 100644
--- a/util/ceg/defaults/message/C_mes_end.c
+++ b/util/ceg/defaults/message/C_mes_end.c
@@ -5,6 +5,7 @@ extern int __db_mes;
 extern int __db_cst;
 extern char *__db_str;
 
+void
 C_mes_end()
 {
 	if (__db_mes) {
diff --git a/util/ceg/defaults/message/C_pnam.c b/util/ceg/defaults/message/C_pnam.c
index 117f3c2cb..b3fe393b2 100644
--- a/util/ceg/defaults/message/C_pnam.c
+++ b/util/ceg/defaults/message/C_pnam.c
@@ -5,6 +5,7 @@
 extern int __db_mes, __db_len, __db_type, __db_add;
 extern char *__db_str;
 
+void
 C_pnam( str)
 char *str;
 {
diff --git a/util/ceg/defaults/message/C_scon.c b/util/ceg/defaults/message/C_scon.c
index 612cc4736..ba2de6b16 100644
--- a/util/ceg/defaults/message/C_scon.c
+++ b/util/ceg/defaults/message/C_scon.c
@@ -5,6 +5,7 @@ extern int __db_mes;
 extern char *__db_str;
 extern int __db_len;
 
+void
 C_scon( str, siz)
 char *str;
 arith siz;
diff --git a/util/ceg/defaults/message/C_ucon.c b/util/ceg/defaults/message/C_ucon.c
index 8e648f367..7d777672c 100644
--- a/util/ceg/defaults/message/C_ucon.c
+++ b/util/ceg/defaults/message/C_ucon.c
@@ -1,6 +1,7 @@
 #define CODE_EXPANDER
 #include <em.h>
 
+void
 C_ucon( val, siz)
 char *val;
 arith siz;