diff --git a/usr.bin/column/column.c b/usr.bin/column/column.c
index 16a067cd9dae..31f316f4d059 100644
--- a/usr.bin/column/column.c
+++ b/usr.bin/column/column.c
@@ -75,9 +75,7 @@ char **list;			/* array of pointers to records */
 const char *separator = "\t ";	/* field separator for table option */
 
 int
-main(argc, argv)
-	int argc;
-	char **argv;
+main(int argc, char **argv)
 {
 	struct winsize win;
 	FILE *fp;
@@ -139,7 +137,7 @@ main(argc, argv)
 }
 
 void
-c_columnate()
+c_columnate(void)
 {
 	int chcnt, col, cnt, endcol, numcols;
 	char **lp;
@@ -167,7 +165,7 @@ c_columnate()
 }
 
 void
-r_columnate()
+r_columnate(void)
 {
 	int base, chcnt, cnt, col, endcol, numcols, numrows, row;
 
@@ -193,7 +191,7 @@ r_columnate()
 }
 
 void
-print()
+print(void)
 {
 	int cnt;
 	char **lp;
@@ -209,7 +207,7 @@ typedef struct _tbl {
 #define	DEFCOLS	25
 
 void
-maketbl()
+maketbl(void)
 {
 	TBL *t;
 	int coloff, cnt;
@@ -260,8 +258,7 @@ maketbl()
 #define	MAXLINELEN	(LINE_MAX + 1)
 
 void
-input(fp)
-	FILE *fp;
+input(FILE *fp)
 {
 	static int maxentry;
 	int len;
@@ -295,7 +292,7 @@ input(fp)
 }
 
 void
-usage()
+usage(void)
 {
 
 	(void)fprintf(stderr,