diff --git a/changelog_entry.yaml b/changelog_entry.yaml
index e69de29b..6a5e3101 100644
--- a/changelog_entry.yaml
+++ b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: patch
+  changes:
+    fixed:
+    - Syntax error in Simulation class
\ No newline at end of file
diff --git a/policyengine_core/simulations/simulation.py b/policyengine_core/simulations/simulation.py
index 1dafaca1..c10ba3e2 100644
--- a/policyengine_core/simulations/simulation.py
+++ b/policyengine_core/simulations/simulation.py
@@ -1418,11 +1418,9 @@ def check_macro_cache(self, variable_name: str, period: str) -> bool:
         """
         Check if the variable is able to have cached value
         """
-        if (
-            hasattr(self, "dataset")
-            and self.dataset.data_format == Dataset.FLAT_FILE
-        ):
-            return False
+        if hasattr(self, "dataset"):
+            if self.dataset.data_format == Dataset.FLAT_FILE:
+                return False
 
         if self.is_over_dataset:
             return True