diff --git a/common/router1.cc b/common/router1.cc
index 7f852dca..fb618297 100644
--- a/common/router1.cc
+++ b/common/router1.cc
@@ -367,7 +367,7 @@ struct Router
 
             if (ctx->debug) {
                 log("    Destination wire: %s\n", ctx->getWireName(dst_wire).c_str(ctx));
-                log("    Path delay estimate: %.2f\n", float(ctx->estimateDelay(src_wire, dst_wire)));
+                log("    Path delay estimate: %.2f\n", ctx->getDelayNS(ctx->estimateDelay(src_wire, dst_wire)));
             }
 
             route(src_wires, dst_wire);