diff --git a/src/core/operations/PseudoRandomNumberGenerator.mjs b/src/core/operations/PseudoRandomNumberGenerator.mjs
index 53150566..da23c4de 100644
--- a/src/core/operations/PseudoRandomNumberGenerator.mjs
+++ b/src/core/operations/PseudoRandomNumberGenerator.mjs
@@ -31,7 +31,8 @@ class PseudoRandomNumberGenerator extends Operation {
             {
                 "name": "Number of bytes",
                 "type": "number",
-                "value": 32
+                "value": 32,
+                "min": 1
             },
             {
                 "name": "Output as",