diff --git a/Externals/soundtouch/FIRFilter.cpp b/Externals/soundtouch/FIRFilter.cpp
index ddd2a87dec..54c808d006 100644
--- a/Externals/soundtouch/FIRFilter.cpp
+++ b/Externals/soundtouch/FIRFilter.cpp
@@ -217,6 +217,7 @@ uint FIRFilter::evaluateFilterMulti(SAMPLETYPE *dest, const SAMPLETYPE *src, uin
             sum[c] = 0;
         }
     }
+    free(sum);
     return numSamples - length;
 }
 
diff --git a/Externals/soundtouch/SoundTouch.cpp b/Externals/soundtouch/SoundTouch.cpp
index 4fad740587..7c35d86697 100644
--- a/Externals/soundtouch/SoundTouch.cpp
+++ b/Externals/soundtouch/SoundTouch.cpp
@@ -383,6 +383,7 @@ void SoundTouch::flush()
     pTDStretch->clearInput();
     // yet leave the 'tempoChanger' output intouched as that's where the
     // flushed samples are!
+    free(buff);
 }