diff --git a/configure b/configure
index 9bcf62dca5..e99c0d23af 100755
--- a/configure
+++ b/configure
@@ -648,7 +648,6 @@ LIBGD
 libc_cv_cc_loop_to_function
 libc_cv_cc_submachine
 libc_cv_cc_nofma
-libc_cv_mtls_descriptor
 libc_cv_has_glob_dat
 libc_cv_fpie
 libc_cv_z_execstack
@@ -7221,7 +7220,6 @@ esac
 fi
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mtls_descriptor" >&5
 printf "%s\n" "$libc_cv_mtls_descriptor" >&6; }
-
 config_vars="$config_vars
 have-mtls-descriptor = $libc_cv_mtls_descriptor"
 
diff --git a/configure.ac b/configure.ac
index 895bd5267d..06a9c3f252 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1331,7 +1331,6 @@ else
   libc_cv_mtls_descriptor=no
 fi
 rm -f conftest*])
-AC_SUBST(libc_cv_mtls_descriptor)
 LIBC_CONFIG_VAR([have-mtls-descriptor], [$libc_cv_mtls_descriptor])
 
 dnl clang emits an warning for a double alias redirection, to warn the