diff --git a/utils/collectibleCategoriesToJson.js b/utils/collectibleCategoriesToJson.js
index 1cde0c5..11421f2 100644
--- a/utils/collectibleCategoriesToJson.js
+++ b/utils/collectibleCategoriesToJson.js
@@ -15,7 +15,8 @@ function collectibleCategoriesToJson(collectibleCategories) {
 				file: `${p.name
 					.toLowerCase()
 					.replaceAll("'", "")
-					.replaceAll(/[^A-Za-z0-9]/g, "_")}.png`,
+					.replaceAll(/[^A-Za-z0-9]+/g, "_")
+					.replaceAll(/(^_|_$)/g, "")}.png`,
 			})),
 	}));
 }
diff --git a/utils/getAvatarDecorations.js b/utils/getAvatarDecorations.js
index 8a7d9bb..2e42020 100644
--- a/utils/getAvatarDecorations.js
+++ b/utils/getAvatarDecorations.js
@@ -13,7 +13,8 @@
 				.querySelector("div[class*='cardText_'] div[class*='productName_']")
 				.innerText.toLowerCase()
 				.replaceAll("'", "")
-				.replaceAll(/[^A-Za-z0-9]/g, "_")}.png`,
+				.replaceAll(/[^A-Za-z0-9]+/g, "_")
+				.replaceAll(/(^_|_$)/g, "")}.png`,
 		);
 	}
 	console.log(e.join("\n"));