diff --git a/pipelined/src/ppa/ppa.sv b/pipelined/src/ppa/ppa.sv
index 31aa13523..ec10da6f1 100644
--- a/pipelined/src/ppa/ppa.sv
+++ b/pipelined/src/ppa/ppa.sv
@@ -525,7 +525,7 @@ module ppa_decoder #(parameter WIDTH = 8) (
   end
 endmodule
 
-module ppa_mux2_1 #(parameter WIDTH = 1) (
+module ppa_mux2d_1 #(parameter WIDTH = 1) (
   input  logic [WIDTH-1:0] d0, d1, 
   input  logic             s, 
   output logic [WIDTH-1:0] y);
@@ -533,7 +533,7 @@ module ppa_mux2_1 #(parameter WIDTH = 1) (
   assign y = s ? d1 : d0; 
 endmodule
 
-module ppa_mux4_1 #(parameter WIDTH = 1) (
+module ppa_mux4d_1 #(parameter WIDTH = 1) (
   input  logic [WIDTH-1:0] d0, d1, d2, d3,
   input  logic [1:0]       s, 
   output logic [WIDTH-1:0] y);
@@ -541,7 +541,7 @@ module ppa_mux4_1 #(parameter WIDTH = 1) (
   assign y = s[1] ? (s[0] ? d3 : d2) : (s[0] ? d1 : d0); 
 endmodule
 
-module ppa_mux8_1 #(parameter WIDTH = 1) (
+module ppa_mux8d_1 #(parameter WIDTH = 1) (
   input  logic [WIDTH-1:0] d0, d1, d2, d3, d4, d5, d6, d7,
   input  logic [2:0]       s, 
   output logic [WIDTH-1:0] y);
diff --git a/synthDC/scripts/synth.tcl b/synthDC/scripts/synth.tcl
index 178820933..656286d94 100755
--- a/synthDC/scripts/synth.tcl
+++ b/synthDC/scripts/synth.tcl
@@ -74,7 +74,7 @@ if { $saifpower == 1 } {
 if {$drive != "INV"} {
     set_false_path -from [get_ports reset]
 }
-if {(($::env(DESIGN) == "ppa_mux2_1") || ($::env(DESIGN) == "ppa_mux4_1") || ($::env(DESIGN) == "ppa_mux8_1"))} {
+if {(($::env(DESIGN) == "ppa_mux2d_1") || ($::env(DESIGN) == "ppa_mux4d_1") || ($::env(DESIGN) == "ppa_mux8d_1"))} {
     set_false_path -from {s}
 }