diff --git a/gnu/usr.bin/grep/config.h b/gnu/usr.bin/grep/config.h
index 88f83d8562e..6f7794e485f 100644
--- a/gnu/usr.bin/grep/config.h
+++ b/gnu/usr.bin/grep/config.h
@@ -298,7 +298,7 @@
 #define STDC_HEADERS 1
 
 /* Version number of package */
-#define VERSION "2.5.1"
+#define VERSION "2.5.1-FreeBSD"
 
 /* Number of bits in a file offset, on hosts where this is settable. */
 /* #undef _FILE_OFFSET_BITS */