diff --git a/src/ADSR.cpp b/src/ADSR.cpp
index 8ecfd5d..8a42114 100644
--- a/src/ADSR.cpp
+++ b/src/ADSR.cpp
@@ -32,6 +32,7 @@ ADSR :: ADSR( void )
 
 ADSR :: ~ADSR( void )
 {
+  Stk::removeSampleRateAlert( this );
 }
 
 void ADSR :: sampleRateChanged( StkFloat newRate, StkFloat oldRate )
diff --git a/src/Asymp.cpp b/src/Asymp.cpp
index 8b4f2a7..80fde66 100644
--- a/src/Asymp.cpp
+++ b/src/Asymp.cpp
@@ -40,6 +40,7 @@ Asymp :: Asymp( void )
 
 Asymp :: ~Asymp( void )
 {    
+  Stk::removeSampleRateAlert( this );
 }
 
 void Asymp :: sampleRateChanged( StkFloat newRate, StkFloat oldRate )