diff --git a/tests/peepopt/addsub_c.ys b/tests/peepopt/addsub_c.ys
index 6543de7cf..9a6a397cb 100644
--- a/tests/peepopt/addsub_c.ys
+++ b/tests/peepopt/addsub_c.ys
@@ -81,7 +81,7 @@ log -push
 read_verilog <<EOT
 module top(
 	input signed [3:0] a,
-	output signed [7:0] y,
+	output signed [7:0] y
 );
 	wire signed [7:0] add;
 	assign add = a + 4'sd6;
@@ -100,7 +100,7 @@ log -push
 read_verilog <<EOT
 module top(
 	input signed [3:0] a,
-	output signed [7:0] y,
+	output signed [7:0] y
 );
 	wire signed [7:0] add;
 	assign add = a + 4'sd6;
@@ -119,7 +119,7 @@ log -push
 read_verilog <<EOT
 module top(
 	input signed [3:0] a,
-	output signed [7:0] y,
+	output signed [7:0] y
 );
 	wire signed [7:0] sub;
 	assign sub = a - 4'sd6;
@@ -138,7 +138,7 @@ log -push
 read_verilog <<EOT
 module top(
 	input signed [3:0] a,
-	output signed [7:0] y,
+	output signed [7:0] y
 );
 	wire signed [7:0] sub;
 	assign sub = a - 4'sd6;
@@ -159,7 +159,7 @@ log -push
 read_verilog <<EOT
 module top(
 	input signed [3:0] a,
-	output signed [7:0] y,
+	output signed [7:0] y
 );
 	wire signed [7:0] add;
 	assign add = 4'sd6 + a;