diff --git a/compiler/extensions/cpp/freemarker/Bitmask.cpp.ftl b/compiler/extensions/cpp/freemarker/Bitmask.cpp.ftl
index dabc4c0af..90ae393bc 100644
--- a/compiler/extensions/cpp/freemarker/Bitmask.cpp.ftl
+++ b/compiler/extensions/cpp/freemarker/Bitmask.cpp.ftl
@@ -99,14 +99,14 @@ ${types.reflectablePtr.name} ${name}::reflectable(const ${types.allocator.defaul
             </#if>
         }
 
-        ${types.anyHolder.name} getAnyValue(const ${types.allocator.default}& allocator) const override
+        ${types.anyHolder.name} getAnyValue(const ${types.allocator.default}& alloc) const override
         {
-            return ${types.anyHolder.name}(m_bitmask, allocator);
+            return ${types.anyHolder.name}(m_bitmask, alloc);
         }
 
-        ${types.anyHolder.name} getAnyValue(const ${types.allocator.default}& allocator) override
+        ${types.anyHolder.name} getAnyValue(const ${types.allocator.default}& alloc) override
         {
-            return ${types.anyHolder.name}(m_bitmask, allocator);
+            return ${types.anyHolder.name}(m_bitmask, alloc);
         }
 
         <#-- bitmask is always unsigned -->
@@ -125,9 +125,9 @@ ${types.reflectablePtr.name} ${name}::reflectable(const ${types.allocator.defaul
             return static_cast<double>(toUInt());
         }
 
-        ${types.string.name} toString(const ${types.allocator.default}& allocator) const override
+        ${types.string.name} toString(const ${types.allocator.default}& alloc) const override
         {
-            return m_bitmask.toString(allocator);
+            return m_bitmask.toString(alloc);
         }
 
     private:
diff --git a/compiler/extensions/cpp/freemarker/Choice.cpp.ftl b/compiler/extensions/cpp/freemarker/Choice.cpp.ftl
index 7652e19ba..667748980 100644
--- a/compiler/extensions/cpp/freemarker/Choice.cpp.ftl
+++ b/compiler/extensions/cpp/freemarker/Choice.cpp.ftl
@@ -198,9 +198,9 @@ ${I}return {};
         using ::zserio::ReflectableConstAllocatorHolderBase<allocator_type>::getAnyValue;
 
     </#if>
-        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& allocator) :
+        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& alloc) :
                 ::zserio::Reflectable<#if isConst>Const</#if>AllocatorHolderBase<allocator_type>(<#rt>
-                        <#lt>${fullName}::typeInfo(), allocator),
+                        <#lt>${fullName}::typeInfo(), alloc),
                 m_object(object)
         {}
     <#if !isConst>
@@ -269,15 +269,15 @@ ${I}return {};
     </#if>
         }
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) const override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) const override
         {
-            return ${types.anyHolder.name}(::std::cref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::cref(m_object), alloc);
         }
     <#if !isConst>
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) override
         {
-            return ${types.anyHolder.name}(::std::ref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::ref(m_object), alloc);
         }
     </#if>
 
diff --git a/compiler/extensions/cpp/freemarker/Structure.cpp.ftl b/compiler/extensions/cpp/freemarker/Structure.cpp.ftl
index e7469c6f9..6ac53fb0f 100644
--- a/compiler/extensions/cpp/freemarker/Structure.cpp.ftl
+++ b/compiler/extensions/cpp/freemarker/Structure.cpp.ftl
@@ -160,9 +160,9 @@ const ${types.typeInfo.name}& ${name}::typeInfo()
         using ::zserio::ReflectableConstAllocatorHolderBase<allocator_type>::getAnyValue;
 
     </#if>
-        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& allocator) :
+        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& alloc) :
                 ::zserio::Reflectable<#if isConst>Const</#if>AllocatorHolderBase<allocator_type>(<#rt>
-                        <#lt>${fullName}::typeInfo(), allocator),
+                        <#lt>${fullName}::typeInfo(), alloc),
                 m_object(object)
         {}
     <#if !isConst>
@@ -222,15 +222,15 @@ const ${types.typeInfo.name}& ${name}::typeInfo()
         </#if>
     </#if>
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) const override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) const override
         {
-            return ${types.anyHolder.name}(::std::cref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::cref(m_object), alloc);
         }
     <#if !isConst>
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) override
         {
-            return ${types.anyHolder.name}(::std::ref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::ref(m_object), alloc);
         }
     </#if>
 
diff --git a/compiler/extensions/cpp/freemarker/Union.cpp.ftl b/compiler/extensions/cpp/freemarker/Union.cpp.ftl
index fb7ad952e..51fda82a9 100644
--- a/compiler/extensions/cpp/freemarker/Union.cpp.ftl
+++ b/compiler/extensions/cpp/freemarker/Union.cpp.ftl
@@ -288,8 +288,8 @@ const ${types.typeInfo.name}& ${name}::typeInfo()
         using ::zserio::ReflectableConstAllocatorHolderBase<allocator_type>::getAnyValue;
 
     </#if>
-        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& allocator) :
-                ::zserio::Reflectable<#if isConst>Const</#if>AllocatorHolderBase<allocator_type>(${fullName}::typeInfo(), allocator),
+        explicit Reflectable(<#if isConst>const </#if>${fullName}& object, const allocator_type& alloc) :
+                ::zserio::Reflectable<#if isConst>Const</#if>AllocatorHolderBase<allocator_type>(${fullName}::typeInfo(), alloc),
                 m_object(object)
         {}
     <#if !isConst>
@@ -366,15 +366,15 @@ const ${types.typeInfo.name}& ${name}::typeInfo()
     </#if>
         }
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) const override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) const override
         {
-            return ${types.anyHolder.name}(::std::cref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::cref(m_object), alloc);
         }
     <#if !isConst>
 
-        ${types.anyHolder.name} getAnyValue(const allocator_type& allocator) override
+        ${types.anyHolder.name} getAnyValue(const allocator_type& alloc) override
         {
-            return ${types.anyHolder.name}(::std::ref(m_object), allocator);
+            return ${types.anyHolder.name}(::std::ref(m_object), alloc);
         }
     </#if>