diff --git a/src/interpreter.rs b/src/interpreter.rs
index a6a4233c..f4ae621e 100644
--- a/src/interpreter.rs
+++ b/src/interpreter.rs
@@ -791,10 +791,9 @@ impl Interpreter {
                     }
                 }
             }
-            Value::Undefined | Value::Null => r = false,
-            // Other types cause every to evaluate to true even though
-            // it is supposed to happen only for empty domain.
-            _ => (),
+            _ => {
+                r = false;
+            }
         };
         self.contexts.pop();
         self.scopes.pop();
diff --git a/tests/interpreter/cases/every/tests.yaml b/tests/interpreter/cases/every/tests.yaml
index 685499e0..43cff25d 100644
--- a/tests/interpreter/cases/every/tests.yaml
+++ b/tests/interpreter/cases/every/tests.yaml
@@ -114,7 +114,6 @@ cases:
       x1: 100
       x2: 100
       x3: 100
-      x4: 100
 
   - note: negative
     data: {}