diff --git a/exec.c b/exec.c
index bd9ed90..2c12675 100644
--- a/exec.c
+++ b/exec.c
@@ -1001,7 +1001,7 @@ int dofile(char *fname)
  * int f, n;        default flag and numeric arg
  * int bufnum;      number of buffer to execute
  */
-int cbuf(int f, int n, int bufnum)
+static int cbuf(int f, int n, int bufnum)
 {
     struct buffer *bp;  /* ptr to buffer to execute */
     int status; /* status return */
diff --git a/exec.h b/exec.h
index fb5f081..d7cba76 100644
--- a/exec.h
+++ b/exec.h
@@ -26,7 +26,7 @@ int storemac( int f, int n) ;
 int execbuf( int f, int n) ;
 int execfile( int f, int n) ;
 int dofile( char *fname) ;
-int cbuf( int f, int n, int bufnum) ;
+
 int cbuf1( int f, int n) ;
 int cbuf2( int f, int n) ;
 int cbuf3( int f, int n) ;