diff --git a/modules/src/alloc/No_Mem.c b/modules/src/alloc/No_Mem.c
index c880881df..f4a6b1105 100644
--- a/modules/src/alloc/No_Mem.c
+++ b/modules/src/alloc/No_Mem.c
@@ -6,6 +6,7 @@
 #include	<system.h>
 #include	"alloc.h"
 
+void
 No_Mem()
 {
 	sys_write(STDERR, "Out of memory\n", 14);
diff --git a/modules/src/alloc/alloc.3 b/modules/src/alloc/alloc.3
index 0b37403ae..f7c963cad 100644
--- a/modules/src/alloc/alloc.3
+++ b/modules/src/alloc/alloc.3
@@ -38,13 +38,14 @@ Malloc, Salloc, Realloc, Srealloc, st_alloc, st_free\ \-\ low level memory alloc
 .br
 .B unsigned int size;
 .PP
-.br
-.B clear(ptr, size)
+.B void clear(ptr, size)
 .br
 .B char *ptr;
 .br
 .B unsigned int size;
 .PP
+.void No_Mem()
+.PP
 .SH DESCRIPTION
 This set of routines provides a checking memory allocation mechanism.
 .PP
diff --git a/modules/src/alloc/alloc.h b/modules/src/alloc/alloc.h
index 82783a2d9..c516fee5f 100644
--- a/modules/src/alloc/alloc.h
+++ b/modules/src/alloc/alloc.h
@@ -24,12 +24,13 @@ char *Srealloc(char *, unsigned int);
 char *Realloc(char *, unsigned int);
 char *st_alloc(char **, unsigned int, int);
 char *std_alloc(char **, unsigned int, int, int *);
-int No_Mem(void);
+void No_Mem(void);
 void clear(char *, unsigned int);
 void botch(char *, unsigned int);
 #else
 extern char	*Salloc(), *Malloc(), *Srealloc(), *Realloc();
 extern char	*st_alloc(), *std_alloc();
+void		clear(), botch(), No_Mem();
 #endif
 
 /*	S T R U C T U R E - S T O R A G E  D E F I N I T I O N S	*/
diff --git a/modules/src/alloc/botch.c b/modules/src/alloc/botch.c
index cc5880866..02d54a7b3 100644
--- a/modules/src/alloc/botch.c
+++ b/modules/src/alloc/botch.c
@@ -9,9 +9,7 @@
 
 #include "alloc.h"
 
-#if __STDC__
 void
-#endif
 botch(ptr, n)
 	register char *ptr;
 	register unsigned int n;
diff --git a/modules/src/alloc/clear.c b/modules/src/alloc/clear.c
index 36ebcad59..e88de6080 100644
--- a/modules/src/alloc/clear.c
+++ b/modules/src/alloc/clear.c
@@ -10,9 +10,7 @@
 
 /* instead of Calloc: */
 
-#if __STDC__
 void
-#endif
 clear(ptr, n)
 	register char *ptr;
 	register unsigned int n;