diff --git a/Machines/Commodore/Vic-20/Vic20.cpp b/Machines/Commodore/Vic-20/Vic20.cpp
index 89c1bb1dc..181eb8cc9 100644
--- a/Machines/Commodore/Vic-20/Vic20.cpp
+++ b/Machines/Commodore/Vic-20/Vic20.cpp
@@ -233,8 +233,8 @@ class Vic6560BusHandler {
 		}
 
 		// It is assumed that these pointers have been filled in by the machine.
-		uint8_t *video_memory_map[16];	// Segments video memory into 1kb portions.
-		uint8_t *colour_memory;			// Colour memory must be contiguous.
+		uint8_t *video_memory_map[16]{};	// Segments video memory into 1kb portions.
+		uint8_t *colour_memory{};			// Colour memory must be contiguous.
 };
 
 /*!
diff --git a/Machines/Oric/Oric.cpp b/Machines/Oric/Oric.cpp
index 63f574d62..59f0dcdbb 100644
--- a/Machines/Oric/Oric.cpp
+++ b/Machines/Oric/Oric.cpp
@@ -36,6 +36,7 @@
 
 #include "../../ClockReceiver/JustInTime.hpp"
 
+#include <array>
 #include <cstdint>
 #include <memory>
 #include <vector>
@@ -715,7 +716,7 @@ template <Analyser::Static::Oric::Target::DiskInterface disk_interface, CPU::MOS
 
 		// RAM and ROM
 		std::vector<uint8_t> rom_, disk_rom_;
-		uint8_t ram_[65536];
+		std::array<uint8_t, 65536> ram_{};
 
 		// ROM bookkeeping
 		uint16_t tape_get_byte_address_ = 0, tape_speed_address_ = 0;