diff --git a/src/TinyGsmClientA6.h b/src/TinyGsmClientA6.h
index b90d1c2..624b123 100644
--- a/src/TinyGsmClientA6.h
+++ b/src/TinyGsmClientA6.h
@@ -184,6 +184,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmA6() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientBG96.h b/src/TinyGsmClientBG96.h
index 281689c..8f69d10 100644
--- a/src/TinyGsmClientBG96.h
+++ b/src/TinyGsmClientBG96.h
@@ -220,6 +220,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmBG96() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientESP8266.h b/src/TinyGsmClientESP8266.h
index 9f8e333..fdf7db5 100644
--- a/src/TinyGsmClientESP8266.h
+++ b/src/TinyGsmClientESP8266.h
@@ -205,6 +205,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmESP8266() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientM590.h b/src/TinyGsmClientM590.h
index c16b9c0..e2d87df 100644
--- a/src/TinyGsmClientM590.h
+++ b/src/TinyGsmClientM590.h
@@ -181,6 +181,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmM590() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientM95.h b/src/TinyGsmClientM95.h
index 9027215..e8ea4b4 100644
--- a/src/TinyGsmClientM95.h
+++ b/src/TinyGsmClientM95.h
@@ -220,6 +220,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmM95() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientMC60.h b/src/TinyGsmClientMC60.h
index 591355a..d4671ff 100644
--- a/src/TinyGsmClientMC60.h
+++ b/src/TinyGsmClientMC60.h
@@ -224,6 +224,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmMC60() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientSIM7000.h b/src/TinyGsmClientSIM7000.h
index fd0cbd6..2d913c0 100644
--- a/src/TinyGsmClientSIM7000.h
+++ b/src/TinyGsmClientSIM7000.h
@@ -249,6 +249,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmSim7000() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientSIM800.h b/src/TinyGsmClientSIM800.h
index e613d0d..be468da 100644
--- a/src/TinyGsmClientSIM800.h
+++ b/src/TinyGsmClientSIM800.h
@@ -244,6 +244,7 @@ public:
   {
     memset(sockets, 0, sizeof(sockets));
   }
+  virtual ~TinyGsmSim800() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientUBLOX.h b/src/TinyGsmClientUBLOX.h
index c54c60c..ca84334 100644
--- a/src/TinyGsmClientUBLOX.h
+++ b/src/TinyGsmClientUBLOX.h
@@ -254,6 +254,7 @@ public:
     memset(sockets, 0, sizeof(sockets));
     isCatM = false;  // For SARA R4 and N4 series
   }
+  virtual ~TinyGsmUBLOX() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmClientXBee.h b/src/TinyGsmClientXBee.h
index 4d9efa8..c647d7a 100644
--- a/src/TinyGsmClientXBee.h
+++ b/src/TinyGsmClientXBee.h
@@ -277,6 +277,8 @@ public:
       inCommandMode = false;
       memset(sockets, 0, sizeof(sockets));
   }
+  
+  virtual ~TinyGsmXBee() {}
 
   /*
    * Basic functions
diff --git a/src/TinyGsmCommon.h b/src/TinyGsmCommon.h
index 68bf900..7ca2abd 100644
--- a/src/TinyGsmCommon.h
+++ b/src/TinyGsmCommon.h
@@ -211,6 +211,7 @@ public:
   TinyGsmModem(Stream& stream)
     : stream(stream)
   {}
+  virtual ~TinyGsmModem() {}
 
   /*
    * Basic functions
@@ -331,6 +332,4 @@ public:
 };
 
 
-
-
 #endif