diff --git a/src/core/operations/Gunzip.mjs b/src/core/operations/Gunzip.mjs
index 1cd789c3..fdfbdef1 100644
--- a/src/core/operations/Gunzip.mjs
+++ b/src/core/operations/Gunzip.mjs
@@ -39,9 +39,10 @@ class Gunzip extends Operation {
         null,
         null,
         {
-            input:  [7, 8],
+            input:  [6.5, 8],
             output: [3.5, 6]
-        });
+        }
+        );
     }
 
     /**
diff --git a/src/core/operations/Unzip.mjs b/src/core/operations/Unzip.mjs
index 0b5a56b2..de09267f 100644
--- a/src/core/operations/Unzip.mjs
+++ b/src/core/operations/Unzip.mjs
@@ -48,7 +48,14 @@ class Unzip extends Operation {
                 magic:  true,
                 args: ["", false]
             },
-        ]);
+        ],
+        null,
+        null,
+        {
+            input:  [6.5, 8],
+            output: [3.5, 6]
+        }
+        );
     }
 
     /**