diff --git a/code-parser.ts b/code-parser.ts
index c17c06e..5124960 100644
--- a/code-parser.ts
+++ b/code-parser.ts
@@ -31,7 +31,7 @@ export class IpynbParser implements CodeParser {
 		}
 
 		let keep_cells: number[] = [];
-		if (args) {
+		if (args.length > 0) {
 			const regex = /^(\d+)(,\d+)*$/;
 			if (regex.test(args)) {
 				keep_cells = args.split(",").map(value => parseInt(value));
diff --git a/main.ts b/main.ts
index d294328..88523d4 100644
--- a/main.ts
+++ b/main.ts
@@ -83,7 +83,7 @@ export default class EmbedCodeFile extends Plugin {
 				srcLinesNum = analyseSrcLines(srcLinesNumString)
 			}
 
-			let args: string = null
+			let args: string = "";
 			if (metaYaml.ARGS) {
 				args = metaYaml.ARGS.toString()
 			}
diff --git a/manifest.json b/manifest.json
index 42ecd0e..5b0568f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
 	"id": "embed-code-file-ipynb-as-python",
 	"name": "Embed Code File with Jupyter Notebook Support",
-	"version": "1.1.2",
+	"version": "1.1.3",
 	"minAppVersion": "0.15.0",
 	"description": "This is a plugin for Obsidian that allows for embedding code files.",
 	"author": "Obsidian",