diff --git a/procps/kill.c b/procps/kill.c
index 8fa9da7..19ca187 100644
--- a/procps/kill.c
+++ b/procps/kill.c
@@ -30,8 +30,8 @@
 #include <ctype.h>
 #include <unistd.h>
 
-#define KILL	0
-#define KILLALL	1
+static const int KILL = 0;
+static const int KILLALL = 1;
 
 struct signal_name {
 	const char *name;
diff --git a/procps/ps.c b/procps/ps.c
index ec63bb5..cb4c21e 100644
--- a/procps/ps.c
+++ b/procps/ps.c
@@ -40,7 +40,7 @@
 #define bb_need_help
 #include "messages.c"
 
-#define TERMINAL_WIDTH  79      /* not 80 in case terminal has linefold bug */
+static const int TERMINAL_WIDTH = 79;      /* not 80 in case terminal has linefold bug */
 
 
 
diff --git a/procps/uptime.c b/procps/uptime.c
index fb3d347..f5e12f1 100644
--- a/procps/uptime.c
+++ b/procps/uptime.c
@@ -33,7 +33,7 @@
 #include <time.h>
 #include <errno.h>
 
-#define FSHIFT          16              /* nr of bits of precision */
+static const int FSHIFT = 16;              /* nr of bits of precision */
 #define FIXED_1         (1<<FSHIFT)     /* 1.0 as fixed-point */
 #define LOAD_INT(x) ((x) >> FSHIFT)
 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)