diff --git a/Source/ARTCrypto.m b/Source/ARTCrypto.m
index 45036fb3f..d1e645ee4 100644
--- a/Source/ARTCrypto.m
+++ b/Source/ARTCrypto.m
@@ -11,12 +11,6 @@ - (BOOL)ccAlgorithm:(CCAlgorithm *)algorithm error:(NSError **)error;
 
 @end
 
-@interface ARTCrypto ()
-
-@property (nonatomic) ARTInternalLog *logger;
-
-@end
-
 @interface ARTCbcCipher ()
 
 @property CCAlgorithm algorithm;
diff --git a/Source/PrivateHeaders/Ably/ARTCrypto+Private.h b/Source/PrivateHeaders/Ably/ARTCrypto+Private.h
index 1e14df34a..4a9119ce0 100644
--- a/Source/PrivateHeaders/Ably/ARTCrypto+Private.h
+++ b/Source/PrivateHeaders/Ably/ARTCrypto+Private.h
@@ -7,7 +7,6 @@ NS_ASSUME_NONNULL_BEGIN
 @interface ARTCipherParams ()
 
 @property (readonly, nonatomic, nullable) NSData *iv;
-@property (nonatomic) ARTInternalLog *logger;
 - (instancetype)initWithAlgorithm:(NSString *)algorithm key:(id<ARTCipherKeyCompatible>)key iv:(NSData *_Nullable)iv;
 
 @end