diff --git a/proc/procps-private.h b/proc/procps-private.h
index 2374f1b6..be970bd8 100644
--- a/proc/procps-private.h
+++ b/proc/procps-private.h
@@ -24,5 +24,6 @@
 #define STRINGIFY_ARG(a)	#a
 #define STRINGIFY(a)		STRINGIFY_ARG(a)
 
+#define MAXTABLE(t)		(int)(sizeof(t) / sizeof(t[0]))
 
 #endif