diff --git a/techlibs/ecp5/cells_bb.v b/techlibs/ecp5/cells_bb.v
index 1de623fcd..bac17260f 100644
--- a/techlibs/ecp5/cells_bb.v
+++ b/techlibs/ecp5/cells_bb.v
@@ -173,6 +173,24 @@ parameter ER1 = "ENABLED";
 parameter ER2 = "ENABLED";
 endmodule
 
+(* blackbox *)
+module DELAYF(
+	input A, LOADN, MOVE, DIRECTION,
+	output Z, CFLAG
+);
+	parameter DEL_MODE = "USER_DEFINED";
+	parameter DEL_VALUE = 0;
+endmodule
+
+(* blackbox *)
+module DELAYG(
+	input A,
+	output Z
+);
+	parameter DEL_MODE = "USER_DEFINED";
+	parameter DEL_VALUE = 0;
+endmodule
+
 (* blackbox *)
 module IDDRX1F(
 	input D, SCLK, RST,