diff --git a/tests/misra/suppressions.txt b/tests/misra/suppressions.txt
new file mode 100644
index 00000000000000..3e598f5421603e
--- /dev/null
+++ b/tests/misra/suppressions.txt
@@ -0,0 +1,2 @@
+# Advisory: union types can be used
+misra.19.2
diff --git a/tests/misra/test_misra.sh b/tests/misra/test_misra.sh
index c7f6799ff5183d..83a367b3925b86 100755
--- a/tests/misra/test_misra.sh
+++ b/tests/misra/test_misra.sh
@@ -8,7 +8,7 @@ make -j4
 cd ../../../
 
 # panda code
-tests/misra/cppcheck/cppcheck --dump --enable=all --inline-suppr board/main.c 2>/tmp/misra/cppcheck_output.txt || true
+tests/misra/cppcheck/cppcheck --suppressions-list=tests/misra/suppressions.txt --dump --enable=all --inline-suppr board/main.c 2>/tmp/misra/cppcheck_output.txt || true
 python tests/misra/cppcheck/addons/misra.py board/main.c.dump 2>/tmp/misra/misra_output.txt || true
 
 # violations in safety files
@@ -24,5 +24,5 @@ then
 fi
 
 # pedal code
-tests/misra/cppcheck/cppcheck --dump --enable=all --inline-suppr board/pedal/main.c 2>/tmp/misra/cppcheck_pedal_output.txt || true
+tests/misra/cppcheck/cppcheck --suppressions-list=tests/misra/suppressions.txt --dump --enable=all --inline-suppr board/pedal/main.c 2>/tmp/misra/cppcheck_pedal_output.txt || true
 python tests/misra/cppcheck/addons/misra.py board/pedal/main.c.dump 2>/tmp/misra/misra_pedal_output.txt || true