diff --git a/src/blackmisc/aviation/modulator.cpp b/src/blackmisc/aviation/modulator.cpp
index 605ca1842..8ff44db51 100644
--- a/src/blackmisc/aviation/modulator.cpp
+++ b/src/blackmisc/aviation/modulator.cpp
@@ -62,25 +62,25 @@ namespace BlackMisc
         }
 
         template <class AVIO>
-        qint32 CModulator<AVIO>::getVolumeOutput() const
+        int CModulator<AVIO>::getVolumeOutput() const
         {
             return this->m_volumeOutput;
         }
 
         template <class AVIO>
-        qint32 CModulator<AVIO>::getVolumeInput() const
+        int CModulator<AVIO>::getVolumeInput() const
         {
             return this->m_volumeInput;
         }
 
         template <class AVIO>
-        void CModulator<AVIO>::setVolumeOutput(qint32 volume)
+        void CModulator<AVIO>::setVolumeOutput(int volume)
         {
             this->m_volumeOutput = volume;
         }
 
         template <class AVIO>
-        void CModulator<AVIO>::setVolumeInput(qint32 volume)
+        void CModulator<AVIO>::setVolumeInput(int volume)
         {
             this->m_volumeInput = volume;
         }
diff --git a/src/blackmisc/aviation/modulator.h b/src/blackmisc/aviation/modulator.h
index f36ccbce9..87f172baa 100644
--- a/src/blackmisc/aviation/modulator.h
+++ b/src/blackmisc/aviation/modulator.h
@@ -56,16 +56,16 @@ namespace BlackMisc
             virtual void setFrequencyStandby(const BlackMisc::PhysicalQuantities::CFrequency &frequency);
 
             //! Output volume 0..100
-            qint32 getVolumeOutput() const;
+            int getVolumeOutput() const;
 
             //! Input volume 0..100
-            qint32 getVolumeInput() const;
+            int getVolumeInput() const;
 
             //! Output volume 0.100
-            void setVolumeOutput(qint32 volume);
+            void setVolumeOutput(int volume);
 
             //! Input volume 0..100
-            void setVolumeInput(qint32 volume);
+            void setVolumeInput(int volume);
 
             //! Name
             QString getName() const;