diff --git a/rtl/ibex_if_stage.sv b/rtl/ibex_if_stage.sv
index 4ce601a8..2149b479 100644
--- a/rtl/ibex_if_stage.sv
+++ b/rtl/ibex_if_stage.sv
@@ -259,13 +259,13 @@ module ibex_if_stage #(
 `ifndef VERILATOR
   // the boot address needs to be aligned to 256 bytes
   assert property (
-    @(posedge clk_i) (boot_addr_i[7:0] == 8'h00) )
-  else $error("The provided boot address is not aligned to 256 bytes");
+    @(posedge clk_i) (boot_addr_i[7:0] == 8'h00) ) else
+      $error("The provided boot address is not aligned to 256 bytes");
 
   // there should never be a grant when there is no request
   assert property (
-    @(posedge clk_i) (instr_gnt_i) |-> (instr_req_o) )
-  else $warning("There was a grant without a request");
+    @(posedge clk_i) (instr_gnt_i) |-> (instr_req_o) ) else
+      $warning("There was a grant without a request");
 
   // assert that the address is word aligned when request is sent
   assert property (
diff --git a/rtl/ibex_load_store_unit.sv b/rtl/ibex_load_store_unit.sv
index ce66d8a7..35b6ae63 100644
--- a/rtl/ibex_load_store_unit.sv
+++ b/rtl/ibex_load_store_unit.sv
@@ -471,11 +471,15 @@ module ibex_load_store_unit (
   // make sure there is no new request when the old one is not yet completely done
   // i.e. it should not be possible to get a grant without an rvalid for the
   // last request
-  assert property ( @(posedge clk_i)
-      ((ls_fsm_cs == WAIT_RVALID) && (data_gnt_i == 1'b1)) |-> (data_rvalid_i == 1'b1) );
+  assert property (
+    @(posedge clk_i)
+      ((ls_fsm_cs == WAIT_RVALID) && (data_gnt_i == 1'b1)) |-> (data_rvalid_i == 1'b1) ) else
+        $display("Data grant set while LSU keeps waiting for rvalid");
 
   // there should be no rvalid when we are in IDLE
-  assert property ( @(posedge clk_i) (ls_fsm_cs == IDLE) |-> (data_rvalid_i == 1'b0) );
+  assert property (
+    @(posedge clk_i) (ls_fsm_cs == IDLE) |-> (data_rvalid_i == 1'b0) ) else
+      $display("Data rvalid set while LSU idle");
 
   // assert that errors are only sent at the same time as rvalid
   assert property (
@@ -483,7 +487,9 @@ module ibex_load_store_unit (
       $display("Data error not sent with rvalid");
 
   // assert that the address does not contain X when request is sent
-  assert property ( @(posedge clk_i) (data_req_o) |-> (!$isunknown(data_addr_o)) );
+  assert property (
+    @(posedge clk_i) (data_req_o) |-> (!$isunknown(data_addr_o)) ) else
+      $display("Data address not valid");
 
   // assert that the address is word aligned when request is sent
   assert property (