diff --git a/lib/linter.sh b/lib/linter.sh
index 01001be5..9f7e816d 100755
--- a/lib/linter.sh
+++ b/lib/linter.sh
@@ -942,7 +942,7 @@ if [ "$VALIDATE_BASH" == "true" ]; then
   # Lint the bash files #
   #######################
   # LintCodebase "FILE_TYPE" "LINTER_NAME" "LINTER_CMD" "FILE_TYPES_REGEX" "FILE_ARRAY"
-  LintCodebase "BASH" "shellcheck" "shellcheck --color" ".*\.\(sh|bash|dash|ksh\)\$" "${FILE_ARRAY_BASH[@]}"
+  LintCodebase "BASH" "shellcheck" "shellcheck --color" ".*\.\(sh\|bash\|dash\|ksh\)\$" "${FILE_ARRAY_BASH[@]}"
 fi
 
 ##################
diff --git a/lib/worker.sh b/lib/worker.sh
index 2c76bf21..e666494f 100755
--- a/lib/worker.sh
+++ b/lib/worker.sh
@@ -455,7 +455,7 @@ function RunTestCases() {
   TestCodebase "JSON" "jsonlint" "jsonlint" ".*\.\(json\)\$" "json"
   TestCodebase "XML" "xmllint" "xmllint" ".*\.\(xml\)\$" "xml"
   TestCodebase "MARKDOWN" "markdownlint" "markdownlint -c $MD_LINTER_RULES" ".*\.\(md\)\$" "markdown"
-  TestCodebase "BASH" "shellcheck" "shellcheck --color" ".*\.\(sh|bash|dash|ksh\)\$" "shell"
+  TestCodebase "BASH" "shellcheck" "shellcheck --color" ".*\.\(sh\|bash\|dash\|ksh\)\$" "shell"
   TestCodebase "PYTHON" "pylint" "pylint --rcfile $PYTHON_LINTER_RULES" ".*\.\(py\)\$" "python"
   TestCodebase "PERL" "perl" "perl -Mstrict -cw" ".*\.\(pl\)\$" "perl"
   TestCodebase "PHP" "php" "php -l" ".*\.\(php\)\$" "php"