diff --git a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_fir/sim_dsp_fir.v b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_fir/sim_dsp_fir.v
index c8020e6..2f953c0 100644
--- a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_fir/sim_dsp_fir.v
+++ b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_fir/sim_dsp_fir.v
@@ -124,7 +124,7 @@
     endcase
 
     // Error detection
-    wire error = stb && (odata != Z[31:0]);
+    wire error = stb && (odata !== Z[31:0]);
 
     // Error counting
     integer error_count;
diff --git a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult/sim_dsp_mult.v b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult/sim_dsp_mult.v
index 6175db4..f162756 100644
--- a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult/sim_dsp_mult.v
+++ b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult/sim_dsp_mult.v
@@ -52,7 +52,7 @@
     );
 
     // Error detection
-    wire error = (Z != C);
+    wire error = (Z !== C);
 
     // Error counting
     integer error_count;
diff --git a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult_r/sim_dsp_mult_r.v b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult_r/sim_dsp_mult_r.v
index 0f64dd7..6187e1a 100644
--- a/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult_r/sim_dsp_mult_r.v
+++ b/ql-qlf-plugin/tests/qlf_k6n10f/sim_dsp_mult_r/sim_dsp_mult_r.v
@@ -61,7 +61,7 @@
     always @(posedge clk)
         r_C <= C;
 
-    wire error = (Z != r_C);
+    wire error = (Z !== r_C);
 
     // Error counting
     integer error_count;