diff --git a/lib/libc/locale/duplocale.3 b/lib/libc/locale/duplocale.3
index f2e82158ae0e..bc0c4bced812 100644
--- a/lib/libc/locale/duplocale.3
+++ b/lib/libc/locale/duplocale.3
@@ -36,7 +36,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In xlocale.h
+.In locale.h
 .Ft locale_t
 .Fn duplocale "locale_t locale"
 .Sh DESCRIPTION
diff --git a/lib/libc/locale/freelocale.3 b/lib/libc/locale/freelocale.3
index 86f4809d6cac..0df80e7892cd 100644
--- a/lib/libc/locale/freelocale.3
+++ b/lib/libc/locale/freelocale.3
@@ -38,7 +38,7 @@ or
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In xlocale.h
+.In locale.h
 .Ft int
 .Fn freelocale "locale_t locale"
 .Sh DESCRIPTION
diff --git a/lib/libc/locale/newlocale.3 b/lib/libc/locale/newlocale.3
index a639c372a6c6..c7414be73d3a 100644
--- a/lib/libc/locale/newlocale.3
+++ b/lib/libc/locale/newlocale.3
@@ -35,7 +35,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In xlocale
+.In locale.h
 .Ft locale_t
 .Fn newlocale "int mask" "const char * locale" "locale_t base"
 .Sh DESCRIPTION
diff --git a/lib/libc/locale/querylocale.3 b/lib/libc/locale/querylocale.3
index f90d626d1ac6..d1bb688ed907 100644
--- a/lib/libc/locale/querylocale.3
+++ b/lib/libc/locale/querylocale.3
@@ -36,7 +36,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In xlocale.h
+.In locale.h
 .Ft const char *
 .Fn querylocale "int mask" "locale_t locale"
 .Sh DESCRIPTION
diff --git a/lib/libc/locale/uselocale.3 b/lib/libc/locale/uselocale.3
index df29a625e17e..96d0008f7837 100644
--- a/lib/libc/locale/uselocale.3
+++ b/lib/libc/locale/uselocale.3
@@ -36,7 +36,7 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In xlocale.h
+.In locale.h
 .Ft locale_t
 .Fn uselocale "locale_t locale"
 .Sh DESCRIPTION