diff --git a/usr.bin/pkill/pkill.c b/usr.bin/pkill/pkill.c
index fa17d6e2aa66..3051f95b66da 100644
--- a/usr.bin/pkill/pkill.c
+++ b/usr.bin/pkill/pkill.c
@@ -62,6 +62,7 @@ __FBSDID("$FreeBSD$");
 #include <pwd.h>
 #include <grp.h>
 #include <errno.h>
+#include <locale.h>
 
 #define	STATUS_MATCH	0
 #define	STATUS_NOMATCH	1
@@ -132,6 +133,8 @@ main(int argc, char **argv)
 	regex_t reg;
 	regmatch_t regmatch;
 
+	setlocale(LC_ALL, "");
+
 	if (strcmp(getprogname(), "pgrep") == 0) {
 		action = grepact;
 		pgrep = 1;
diff --git a/usr.bin/whereis/whereis.c b/usr.bin/whereis/whereis.c
index 5b6a83e7d334..84b0e41eb903 100644
--- a/usr.bin/whereis/whereis.c
+++ b/usr.bin/whereis/whereis.c
@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
 #include <dirent.h>
 #include <err.h>
 #include <errno.h>
+#include <locale.h>
 #include <regex.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -368,6 +369,8 @@ main(int argc, char **argv)
 	regoff_t rlen;
 	FILE *p;
 
+	setlocale(LC_ALL, "");
+
 	scanopts(argc, argv);
 	defaults();