diff --git a/Code/ObjectMapping/RKMappingOperation.m b/Code/ObjectMapping/RKMappingOperation.m
index 6739fbf9..b9d042f6 100644
--- a/Code/ObjectMapping/RKMappingOperation.m
+++ b/Code/ObjectMapping/RKMappingOperation.m
@@ -647,7 +647,12 @@ static NSString * const RKMetadataKeyPathPrefix = @"@metadata.";
         NSArray *existingObjectsArray = RKTransformedValueWithClass(existingObjects, [NSArray class], nil);
         [relationshipCollection addObjectsFromArray:existingObjectsArray];
     }
-    
+    else if (relationshipMapping.assignmentPolicy == RKReplaceAssignmentPolicy) {
+        if (! [self applyReplaceAssignmentPolicyForRelationshipMapping:relationshipMapping]) {
+            return NO;
+        }
+    }
+
     [value enumerateObjectsUsingBlock:^(id nestedObject, NSUInteger collectionIndex, BOOL *stop) {
         id mappableObject = [self destinationObjectForMappingRepresentation:nestedObject withMapping:relationshipMapping.mapping inRelationship:relationshipMapping];
         if (mappableObject) {
@@ -668,9 +673,6 @@ static NSString * const RKMetadataKeyPathPrefix = @"@metadata.";
 
     // If the relationship has changed, set it
     if ([self shouldSetValue:&valueForRelationship atKeyPath:relationshipMapping.destinationKeyPath]) {
-        if (! [self applyReplaceAssignmentPolicyForRelationshipMapping:relationshipMapping]) {
-            return NO;
-        }
         if (! [self mapCoreDataToManyRelationshipValue:valueForRelationship withMapping:relationshipMapping]) {
             RKLogTrace(@"Mapped relationship object from keyPath '%@' to '%@'. Value: %@", relationshipMapping.sourceKeyPath, relationshipMapping.destinationKeyPath, valueForRelationship);
             [self.destinationObject setValue:valueForRelationship forKeyPath:relationshipMapping.destinationKeyPath];