diff --git a/entrypoint.sh b/entrypoint.sh
index 8ca5d3e..bfb0746 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -46,7 +46,7 @@ scan_file(){
         echo "###############################################"
         echo "         Scanning $file"
         echo "###############################################"
-        shellcheck "$file_path" --severity="$severity_mode"
+        shellcheck -x "$file_path" --severity="$severity_mode"
         local exit_code=$?
         if [ $exit_code -eq 0 ] ; then
             printf "%b" "Successfully scanned ${file_path} 🙌\n"
diff --git a/test_data/test_dir/external_sources.sh b/test_data/test_dir/external_sources.sh
new file mode 100644
index 0000000..e0d48bd
--- /dev/null
+++ b/test_data/test_dir/external_sources.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [[ -f ./src/tagging.sh ]]; then
+  . /src/tagging.sh
+fi
\ No newline at end of file
diff --git a/tests/unit_tests/scan_tests.sh b/tests/unit_tests/scan_tests.sh
index 1ef1252..379c8be 100755
--- a/tests/unit_tests/scan_tests.sh
+++ b/tests/unit_tests/scan_tests.sh
@@ -24,6 +24,16 @@ test_scan_unsuppoted_script(){
     assertNotContains "Actual messages:$actual Did not contain the expected message.\n" "$actual" "$expected2" 
 }
 
+test_scan_external_sourced_file(){
+    local actual=$(scan_file ./test_data/test_dir/external_sources.sh)
+    local notExpected="SC1091: Not following"
+    local expected="Scanning external_sources.sh"
+
+    assertContains "Actual messages:$actual Did not contain the expected message.\n" "$actual" "$expected" 
+    assertNotContains "Actual messages:$actual\n contains the unexpected message: '$notExpected'\n" "$actual" "$notExpected" 
+
+}
+
 # scan_all() tests
 test_scan_a_directory(){
     local message1="Scanning all the shell scripts at ./test_data/script_type"