diff --git a/tools/dreport.d/plugins.d/ramoops b/tools/dreport.d/plugins.d/ramoops
index 66324f0..7506202 100644
--- a/tools/dreport.d/plugins.d/ramoops
+++ b/tools/dreport.d/plugins.d/ramoops
@@ -4,16 +4,19 @@
 # @brief: Move the ramoops data file to the dreport packaging.
 #
 
-. $DREPORT_INCLUDE/functions
+# shellcheck source=tools/dreport.d/include.d/functions
+. "$DREPORT_INCLUDE/functions"
 
 desc="Ramoops file"
 
-for path in ${optional_path}/*
-do
-    if [ -f $path ]; then
-        # Remove the file from path after successful copy
-        if add_copy_file "$path" "$desc"; then
-            rm "$path"
+if [ -n "${optional_path}" ]; then
+    for path in "${optional_path}"/*
+    do
+        if [ -f "$path" ]; then
+            # Remove the file from path after successful copy
+            if add_copy_file "$path" "$desc"; then
+                rm "$path"
+            fi
         fi
-    fi
-done
+    done
+fi