diff --git a/lib/libc/tests/locale/mblen_test.c b/lib/libc/tests/locale/mblen_test.c
index 50ec4ac1b683..fbb938d3e5a6 100644
--- a/lib/libc/tests/locale/mblen_test.c
+++ b/lib/libc/tests/locale/mblen_test.c
@@ -46,7 +46,6 @@ __FBSDID("$FreeBSD$");
 ATF_TC_WITHOUT_HEAD(mblen_test);
 ATF_TC_BODY(mblen_test, tc)
 {
-	size_t len;
 	char buf[MB_LEN_MAX + 1];
 
 	/*
diff --git a/lib/libc/tests/locale/mbrlen_test.c b/lib/libc/tests/locale/mbrlen_test.c
index ffd61431550d..c2bc54832156 100644
--- a/lib/libc/tests/locale/mbrlen_test.c
+++ b/lib/libc/tests/locale/mbrlen_test.c
@@ -49,7 +49,6 @@ ATF_TC_WITHOUT_HEAD(mbrlen_test);
 ATF_TC_BODY(mbrlen_test, tc)
 {
 	mbstate_t s;
-	size_t len;
 	char buf[MB_LEN_MAX + 1];
 
 	/* C/POSIX locale. */
diff --git a/lib/libc/tests/locale/mbrtowc_test.c b/lib/libc/tests/locale/mbrtowc_test.c
index 27403925daa9..37e0bfd6fbaa 100644
--- a/lib/libc/tests/locale/mbrtowc_test.c
+++ b/lib/libc/tests/locale/mbrtowc_test.c
@@ -49,7 +49,6 @@ ATF_TC_WITHOUT_HEAD(mbrtowc_test);
 ATF_TC_BODY(mbrtowc_test, tc)
 {
 	mbstate_t s;
-	size_t len;
 	wchar_t wc;
 	char buf[MB_LEN_MAX + 1];
 
diff --git a/lib/libc/tests/locale/mbtowc_test.c b/lib/libc/tests/locale/mbtowc_test.c
index 1f64fe1c4b19..7c7f80eb5cc4 100644
--- a/lib/libc/tests/locale/mbtowc_test.c
+++ b/lib/libc/tests/locale/mbtowc_test.c
@@ -46,9 +46,8 @@ __FBSDID("$FreeBSD$");
 ATF_TC_WITHOUT_HEAD(mbtowc_test);
 ATF_TC_BODY(mbtowc_test, tc)
 {
-	size_t len;
-	wchar_t wc;
 	char buf[MB_LEN_MAX + 1];
+	wchar_t wc;
 
 	/* C/POSIX locale. */