diff --git a/dissect/target/plugins/filesystem/yara.py b/dissect/target/plugins/filesystem/yara.py
index 3fea9a285..8636127d0 100644
--- a/dissect/target/plugins/filesystem/yara.py
+++ b/dissect/target/plugins/filesystem/yara.py
@@ -45,7 +45,7 @@ def check_compatible(self) -> None:
 
     @arg("-r", "--rules", required=True, nargs="*", help="path(s) to YARA rule file(s) or folder(s)")
     @arg("-p", "--path", default="/", help="path on target(s) to recursively scan")
-    @arg("-m", "--max-size", default=DEFAULT_MAX_SCAN_SIZE, help="maximum file size in bytes to scan")
+    @arg("-m", "--max-size", type=int, default=DEFAULT_MAX_SCAN_SIZE, help="maximum file size in bytes to scan")
     @arg("-c", "--check", default=False, action="store_true", help="check if every YARA rule is valid")
     @export(record=YaraMatchRecord)
     def yara(