diff --git a/Components/1770/1770.cpp b/Components/1770/1770.cpp
index c030cb4df..5504d69c2 100644
--- a/Components/1770/1770.cpp
+++ b/Components/1770/1770.cpp
@@ -189,7 +189,6 @@ void WD1770::posit_event(int new_event_type) {
 		interesting_event_mask_ &= ~new_event_type;
 	}
 
-	Status new_status;
 	BEGIN_SECTION()
 
 	// Wait for a new command, branch to the appropriate handler.
diff --git a/Machines/Utility/Typer.hpp b/Machines/Utility/Typer.hpp
index e93403523..93e02d0f3 100644
--- a/Machines/Utility/Typer.hpp
+++ b/Machines/Utility/Typer.hpp
@@ -23,11 +23,11 @@ namespace Utility {
 */
 class CharacterMapper {
 	public:
+		virtual ~CharacterMapper() {}
+
 		/// @returns The EndSequence-terminated sequence of keys that would cause @c character to be typed.
 		virtual uint16_t *sequence_for_character(char character) = 0;
 
-		virtual CharacterMaper() {}
-
 	protected:
 		typedef uint16_t KeySequence[16];
 
diff --git a/Storage/Disk/Encodings/MFM/Encoder.hpp b/Storage/Disk/Encodings/MFM/Encoder.hpp
index 643cbc610..225a1bb4f 100644
--- a/Storage/Disk/Encodings/MFM/Encoder.hpp
+++ b/Storage/Disk/Encodings/MFM/Encoder.hpp
@@ -45,6 +45,7 @@ std::shared_ptr<Storage::Disk::Track> GetFMTrackWithSectors(const std::vector<co
 class Encoder {
 	public:
 		Encoder(std::vector<bool> &target);
+		virtual ~Encoder() {}
 		virtual void add_byte(uint8_t input) = 0;
 		virtual void add_index_address_mark() = 0;
 		virtual void add_ID_address_mark() = 0;