diff --git a/test/simulator/testcases/exp20_tlx_err_rpt_1.cpp b/test/simulator/testcases/exp20_tlx_err_rpt_1.cpp
new file mode 100644
index 0000000..63a6973
--- /dev/null
+++ b/test/simulator/testcases/exp20_tlx_err_rpt_1.cpp
@@ -0,0 +1,18 @@
+#include "simulator.hpp"
+
+START_TEST_CASE(exp20_tlx_err_rpt_1)
+
+CHIP(ocmb1, EXPLORER_20)
+
+START_ITERATION
+
+REG_SCOM(ocmb1, 0x08040001, 0x0040000000000000) // OCMB_CHIPLET_RE_FIR[9]
+REG_SCOM(ocmb1, 0x08012400, 0x0040000000000000) // TLXFIR[9]
+REG_SCOM(ocmb1, 0x08012407, 0x0040000000000000) // TLXFIR_ACT1
+REG_SCOM(ocmb1, 0x0801241D, 0x0000000001000000) // TLX_ERR_RPT_1[39]
+
+EXP_SIG(ocmb1, 0xd512, 0, 39, RECOVERABLE)
+
+END_ITERATION
+
+END_TEST_CASE
diff --git a/test/simulator/testcases/meson.build b/test/simulator/testcases/meson.build
index 076a617..191b845 100644
--- a/test/simulator/testcases/meson.build
+++ b/test/simulator/testcases/meson.build
@@ -2,5 +2,6 @@
 test_src = files(
     'sample_test_case.cpp',
     'exp20_foxhound7.cpp',
+    'exp20_tlx_err_rpt_1.cpp',
 )