diff --git a/Adjust/ADJLogger.h b/Adjust/ADJLogger.h
index 95bb7433a..f8833d8ea 100644
--- a/Adjust/ADJLogger.h
+++ b/Adjust/ADJLogger.h
@@ -7,7 +7,7 @@
 //
 #import <Foundation/Foundation.h>
 
-typedef enum {
+typedef NS_ENUM(NSInteger, ADJLogLevel) {
     ADJLogLevelVerbose  = 1,
     ADJLogLevelDebug    = 2,
     ADJLogLevelInfo     = 3,
@@ -15,7 +15,7 @@ typedef enum {
     ADJLogLevelError    = 5,
     ADJLogLevelAssert   = 6,
     ADJLogLevelSuppress = 7
-} ADJLogLevel;
+};
 
 /**
  * @brief Adjust logger protocol.
diff --git a/AdjustTests/AdjustTestLibrary/AdjustTestLibrary/ATLControlSignal.h b/AdjustTests/AdjustTestLibrary/AdjustTestLibrary/ATLControlSignal.h
index 22f0ab7da..b5ce19b4e 100644
--- a/AdjustTests/AdjustTestLibrary/AdjustTestLibrary/ATLControlSignal.h
+++ b/AdjustTests/AdjustTestLibrary/AdjustTestLibrary/ATLControlSignal.h
@@ -10,13 +10,13 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-typedef enum {
+typedef NS_ENUM(NSInteger, ATLSignalType) {
     ATLSignalTypeInfo               = 1,
     ATLSignalTypeInitTestSession    = 2,
     ATLSignalTypeEndWait            = 3,
     ATLSignalTypeCancelCurrentTest  = 4,
     ATLSignalTypeUnknown            = 5
-} ATLSignalType;
+};
 
 @interface ATLControlSignal : NSObject