diff --git a/tox.ini b/tox.ini
index 4b5d79086b..ff4658f3d4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -82,6 +82,7 @@ whitelist_externals = bash
 # SC2231: Quote expansions in this for loop glob to prevent wordsplitting, e.g. "$dir"/*.txt .
 # SC2236: Use -n instead of ! -z
 # SC2268: Avoid x-prefix in comparisons as it no longer serves a purpose.
+# SC2320: This $? refers to echo/printf, not a previous command. 
 #
 # Run bashate twice to handle shell scripts that do not end in .sh
 # grep for ' shell' and not 'shell' to exclude files with shell in their name
@@ -101,6 +102,7 @@ whitelist_externals = bash
 # SC2168: 'local' is only valid in functions.
 # SC2219: Instead of 'let expr', prefer (( expr )) .
 # SC2223: This default assignment may cause DoS due to globbing. Quote it.
+# SC2317: Command appears to be unreachable. Check usage (or ignore if invoked indirectly).
 # SC3005: In POSIX sh, arithmetic for loops are undefined.
 # SC3018: In POSIX sh, ++ is undefined.
 # SC3020: In POSIX sh, &> is undefined.
@@ -117,7 +119,8 @@ commands =
          -print0 | xargs -r -n 1 -0 shellcheck \
          -eSC1091 -eSC2001 -eSC2002 -eSC2004 -eSC2006 -eSC2034 \
          -eSC2046 -eSC2064 -eSC2086 -eSC2119 -eSC2120 -eSC2154 \
-         -eSC2166 -eSC2181 -eSC2207 -eSC2231 -eSC2236 -eSC2268"
+         -eSC2166 -eSC2181 -eSC2207 -eSC2231 -eSC2236 -eSC2268 \
+         -eSC2320"
   bash -c "find {toxinidir}          \
          -not \( -type d -name .?\* -prune \) \
          -type f                              \
@@ -131,8 +134,8 @@ commands =
          -eSC2166 -eSC2181 -eSC2207 -eSC2231 -eSC2236 -eSC2268 \
          -eSC1001 -eSC1009 -eSC1035 -eSC1072 -eSC1073 -eSC1090 \
          -eSC2003 -eSC2009 -eSC2015 -eSC2069 -eSC2112 -eSC2155 \
-         -eSC2168 -eSC2219 -eSC2223 -eSC3005 -eSC3018 -eSC3020 \
-         -eSC3037 -eSC3039 -eSC3043"
+         -eSC2168 -eSC2219 -eSC2223 -eSC2317 -eSC3005 -eSC3018 \
+         -eSC3020 -eSC3037 -eSC3039 -eSC3043"
 
 [testenv:linters]
 basepython = python3