diff --git a/plugins/channeltx/modam/ammodsource.cpp b/plugins/channeltx/modam/ammodsource.cpp
index 602890269..165a2f426 100644
--- a/plugins/channeltx/modam/ammodsource.cpp
+++ b/plugins/channeltx/modam/ammodsource.cpp
@@ -128,7 +128,7 @@ void AMModSource::pullOne(Sample& sample)
 
 void AMModSource::prefetch(unsigned int nbSamples)
 {
-    auto nbSamplesAudio = (nbSamples * (unsigned int) ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
+    unsigned int nbSamplesAudio = (unsigned int) (nbSamples * ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
     pullAudio(nbSamplesAudio);
 }
 
diff --git a/plugins/channeltx/modnfm/nfmmodsource.cpp b/plugins/channeltx/modnfm/nfmmodsource.cpp
index ff37ccfb7..7d54cb13f 100644
--- a/plugins/channeltx/modnfm/nfmmodsource.cpp
+++ b/plugins/channeltx/modnfm/nfmmodsource.cpp
@@ -119,7 +119,7 @@ void NFMModSource::pullOne(Sample& sample)
 
 void NFMModSource::prefetch(unsigned int nbSamples)
 {
-    unsigned int nbSamplesAudio = (nbSamples * (unsigned int) ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
+    unsigned int nbSamplesAudio = (unsigned int) (nbSamples * ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
     pullAudio(nbSamplesAudio);
 }
 
diff --git a/plugins/channeltx/modssb/ssbmodsource.cpp b/plugins/channeltx/modssb/ssbmodsource.cpp
index c2e1f9df2..3d7e2483b 100644
--- a/plugins/channeltx/modssb/ssbmodsource.cpp
+++ b/plugins/channeltx/modssb/ssbmodsource.cpp
@@ -131,7 +131,7 @@ void SSBModSource::pullOne(Sample& sample)
 
 void SSBModSource::prefetch(unsigned int nbSamples)
 {
-    unsigned int nbSamplesAudio = (nbSamples * (unsigned int) ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
+    unsigned int nbSamplesAudio = (unsigned int) (nbSamples * ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
     pullAudio(nbSamplesAudio);
 }
 
diff --git a/plugins/channeltx/modwfm/wfmmodsource.cpp b/plugins/channeltx/modwfm/wfmmodsource.cpp
index 532ccf594..2b01569d4 100644
--- a/plugins/channeltx/modwfm/wfmmodsource.cpp
+++ b/plugins/channeltx/modwfm/wfmmodsource.cpp
@@ -191,7 +191,7 @@ void WFMModSource::modulateAudio()
 
 void WFMModSource::prefetch(unsigned int nbSamples)
 {
-    unsigned int nbSamplesAudio = nbSamples * ((Real) m_audioSampleRate / (Real) m_channelSampleRate);
+    unsigned int nbSamplesAudio = (unsigned int) (nbSamples * ((Real) m_audioSampleRate / (Real) m_channelSampleRate));
     pullAudio(nbSamplesAudio);
 }