diff --git a/commands/ash/jobs.c b/commands/ash/jobs.c
index 66e4868b5..ae9c5038c 100755
--- a/commands/ash/jobs.c
+++ b/commands/ash/jobs.c
@@ -75,10 +75,10 @@ static char sccsid[] = "@(#)jobs.c	5.1 (Berkeley) 3/7/91";
 
 struct job *jobtab;		/* array of jobs */
 int njobs;			/* size of array */
-MKINIT short backgndpid = -1;	/* pid of last background process */
+MKINIT pid_t backgndpid = -1;	/* pid of last background process */
 #if JOBS
 int initialpgrp;		/* pgrp of shell on invocation */
-short curjob;			/* current job */
+pid_t curjob;			/* current job */
 #endif
 
 #ifdef __STDC__
diff --git a/commands/ash/jobs.h b/commands/ash/jobs.h
index 1778fcf82..b87262fe2 100755
--- a/commands/ash/jobs.h
+++ b/commands/ash/jobs.h
@@ -50,7 +50,7 @@
  */
 
 struct procstat {
-	short pid;		/* process id */
+	pid_t pid;		/* process id */
 	short status;		/* status flags (defined above) */
 	char *cmd;		/* text of command being run */
 };
@@ -64,8 +64,8 @@ struct procstat {
 struct job {
 	struct procstat ps0;	/* status of process */
 	struct procstat *ps;	/* status or processes when more than one */
-	short nprocs;		/* number of processes */
-	short pgrp;		/* process group of this job */
+	pid_t nprocs;		/* number of processes */
+	pid_t pgrp;		/* process group of this job */
 	char state;		/* true if job is finished */
 	char used;		/* true if this entry is in used */
 	char changed;		/* true if status has changed */
@@ -74,7 +74,7 @@ struct job {
 #endif
 };
 
-extern short backgndpid;	/* pid of last background process */
+extern pid_t backgndpid;	/* pid of last background process */
 
 
 #ifdef __STDC__
diff --git a/commands/ash/shell.h b/commands/ash/shell.h
index cdf316a6f..690c92d92 100755
--- a/commands/ash/shell.h
+++ b/commands/ash/shell.h
@@ -85,6 +85,7 @@ typedef char *pointer;
 #define MKINIT	/* empty */
 
 #include <sys/cdefs.h>
+#include <sys/types.h>
 
 extern char nullstr[1];		/* null string */