3 files changed, 3 insertions, 0 deletions
diff --git a/lib/libc/posix1e/cap_get_fd.c b/lib/libc/posix1e/cap_get_fd.c
index 242ee09d8746..77c2099b8d69 100644
--- a/lib/libc/posix1e/cap_get_fd.c
+++ b/lib/libc/posix1e/cap_get_fd.c
@@ -47,6 +47,7 @@ cap_get_fd(int fd)
 
 	error = __cap_get_fd(fd, cap);
 	if (error) {
+		errno = erro;
 		cap_free(cap);
 		return (NULL);
 	}
diff --git a/lib/libc/posix1e/cap_get_file.c b/lib/libc/posix1e/cap_get_file.c
index c4deb6d412d4..a74bc4111d10 100644
--- a/lib/libc/posix1e/cap_get_file.c
+++ b/lib/libc/posix1e/cap_get_file.c
@@ -47,6 +47,7 @@ cap_get_file(const char *path_p)
 
 	error = __cap_get_file(path_p, cap);
 	if (error) {
+		errno = error;
 		cap_free(cap);
 		return (NULL);
 	}
diff --git a/lib/libc/posix1e/cap_get_proc.c b/lib/libc/posix1e/cap_get_proc.c
index e5d07822cdd8..d2bf96bb3c51 100644
--- a/lib/libc/posix1e/cap_get_proc.c
+++ b/lib/libc/posix1e/cap_get_proc.c
@@ -47,6 +47,7 @@ cap_get_proc(void)
 
 	error = __cap_get_proc(cap);
 	if (error) {
+		errno = error;
 		cap_free(cap);
 		return (NULL);
 	}