diff --git a/lispBM/lispif_vesc_extensions.c b/lispBM/lispif_vesc_extensions.c
index 4399ad62..a7d896ea 100644
--- a/lispBM/lispif_vesc_extensions.c
+++ b/lispBM/lispif_vesc_extensions.c
@@ -5539,9 +5539,6 @@ void lispif_load_vesc_extensions(void) {
 	lbm_string_extensions_init();
 }
 
-// pull in from eval_cps
-void lbm_request_gc(void);
-
 static bool start_flatten_with_gc(lbm_flat_value_t *v, size_t buffer_size) {
 	if (lbm_start_flatten(v, buffer_size)) {
 		return true;