diff --git a/techlibs/ecp5/cells_bb.v b/techlibs/ecp5/cells_bb.v
index c9a6e5232..e616d24d6 100644
--- a/techlibs/ecp5/cells_bb.v
+++ b/techlibs/ecp5/cells_bb.v
@@ -339,6 +339,15 @@ module DDRDLLA(
 	parameter GSR = "ENABLED";
 endmodule
 
+(* blackbox *)
+module DLLDELD(
+	input A, DDRDEL, LOADN, MOVE, DIRECTION,
+	output Z, CFLAG
+);
+	parameter DEL_ADJ = "PLUS";
+	parameter DEL_VAL = 0;
+endmodule
+
 (* blackbox *)
 module CLKDIVF(
 	input CLKI, RST, ALIGNWD,