diff --git a/sysdeps/s390/memrchr-vx.S b/sysdeps/s390/memrchr-vx.S
index c6c3168668..4080dccfbc 100644
--- a/sysdeps/s390/memrchr-vx.S
+++ b/sysdeps/s390/memrchr-vx.S
@@ -161,6 +161,7 @@ ENTRY(MEMRCHR_Z13)
 END(MEMRCHR_Z13)
 
 # if ! HAVE_MEMRCHR_IFUNC
+libc_hidden_def (__memrchr)
 strong_alias (MEMRCHR_Z13, __memrchr)
 weak_alias (__memrchr, memrchr)
 # endif
diff --git a/sysdeps/s390/strchrnul-vx.S b/sysdeps/s390/strchrnul-vx.S
index 07f39426b7..b705979481 100644
--- a/sysdeps/s390/strchrnul-vx.S
+++ b/sysdeps/s390/strchrnul-vx.S
@@ -94,6 +94,7 @@ ENTRY(STRCHRNUL_Z13)
 END(STRCHRNUL_Z13)
 
 # if ! HAVE_STRCHRNUL_IFUNC
+libc_hidden_def (__strchrnul)
 strong_alias (STRCHRNUL_Z13, __strchrnul)
 weak_alias (__strchrnul, strchrnul)
 # endif