diff --git a/MVMCore/MVMCore/LoadHandling/MVMCoreRequestParameters.h b/MVMCore/MVMCore/LoadHandling/MVMCoreRequestParameters.h
index b9b17c1..b53ae9d 100644
--- a/MVMCore/MVMCore/LoadHandling/MVMCoreRequestParameters.h
+++ b/MVMCore/MVMCore/LoadHandling/MVMCoreRequestParameters.h
@@ -64,7 +64,7 @@ typedef NS_ENUM(NSInteger, MFLoadStyle) {
 @property (assign, nonatomic) BOOL addInitialRequestParameters;
 
 // A list of initial parameter sections to blacklist / skip.
-@property (nullable, strong, nonatomic) NSArray *excludedInitialParameters;
+@property (nullable, strong, nonatomic) NSSet<NSString *> *excludedInitialParameters;
 
 // A flag for if we should always show alerts, even during a background load.
 @property (assign) BOOL allowAlertsIfBackgroundRequest;
diff --git a/MVMCore/MVMCore/Session/MVMCoreSessionObject.h b/MVMCore/MVMCore/Session/MVMCoreSessionObject.h
index 9b5f2ae..c2a85e6 100644
--- a/MVMCore/MVMCore/Session/MVMCoreSessionObject.h
+++ b/MVMCore/MVMCore/Session/MVMCoreSessionObject.h
@@ -29,7 +29,7 @@
 // Gets inital parameters for request parameters.
 - (nullable NSDictionary *)getInitialParameters;
 // Gets inital parameters for request parameters excluding any items given a list of key names.
-- (nullable NSDictionary *)getInitialParametersExcludingSections:(nullable NSArray<NSString *> *)excludeSections;
+- (nullable NSDictionary *)getInitialParametersExcludingSections:(nullable NSSet<NSString *> *)excludeSections;
 
 // Restarts the application session state. Can clear variables and pass a page type if needed.
 - (void)restartSessionWithPageType:(nullable NSString *)pageType parameters:(nullable NSDictionary *)parameters clearAllVariables:(BOOL)clearAllVariables;
diff --git a/MVMCore/MVMCore/Session/MVMCoreSessionObject.m b/MVMCore/MVMCore/Session/MVMCoreSessionObject.m
index 57813ac..b49132d 100644
--- a/MVMCore/MVMCore/Session/MVMCoreSessionObject.m
+++ b/MVMCore/MVMCore/Session/MVMCoreSessionObject.m
@@ -19,7 +19,7 @@
     return [self getInitialParametersExcludingSections:nil];
 }
 
-- (nullable NSDictionary *)getInitialParametersExcludingSections:(nullable NSArray<NSString *> *)excludeSections {
+- (nullable NSDictionary *)getInitialParametersExcludingSections:(nullable NSSet<NSString *> *)excludeSections {
     return nil;
 }