diff --git a/libexec/rtld-elf/rtld_c18n.c b/libexec/rtld-elf/rtld_c18n.c
index e013c504624a..655be6b9e3e4 100644
--- a/libexec/rtld-elf/rtld_c18n.c
+++ b/libexec/rtld-elf/rtld_c18n.c
@@ -866,6 +866,12 @@ struct jmp_args
 _rtld_unw_setcontext(struct jmp_args ret, void *p __unused, void *rcsp,
     void **buf)
 {
+	/*
+	 * FIXME: Temporary variable before ubiq-c18n lands.
+	 */
+#ifndef C18N_ENABLED
+	bool C18N_ENABLED = true;
+#endif
 	if (!C18N_ENABLED) {
 		__attribute__((musttail)) return (
 		    _rtld_unw_setcontext_epilogue(ret, p, rcsp, buf));
@@ -878,6 +884,12 @@ struct jmp_args
 _rtld_unw_setcontext_unsealed(struct jmp_args ret, void *p __unused, void *rcsp,
     void **buf)
 {
+	/*
+	 * FIXME: Temporary variable before ubiq-c18n lands.
+	 */
+#ifndef C18N_ENABLED
+	bool C18N_ENABLED = true;
+#endif
 	if (!C18N_ENABLED) {
 		__attribute__((musttail)) return (
 		    _rtld_unw_setcontext_epilogue(ret, p, rcsp, buf));