diff --git a/Machines/Sinclair/ZX8081/Keyboard.hpp b/Machines/Sinclair/ZX8081/Keyboard.hpp
index da4d5fe47..354647ad4 100644
--- a/Machines/Sinclair/ZX8081/Keyboard.hpp
+++ b/Machines/Sinclair/ZX8081/Keyboard.hpp
@@ -12,6 +12,7 @@
 #include "../../KeyboardMachine.hpp"
 #include "../../Utility/Typer.hpp"
 
+namespace Sinclair {
 namespace ZX8081 {
 
 enum Key: uint16_t {
@@ -44,6 +45,7 @@ class CharacterMapper: public ::Utility::CharacterMapper {
 		bool is_zx81_;
 };
 
-};
+}
+}
 
 #endif /* KeyboardMapper_hpp */
diff --git a/Machines/Sinclair/ZX8081/Video.hpp b/Machines/Sinclair/ZX8081/Video.hpp
index 9ea9cb4d9..555c75603 100644
--- a/Machines/Sinclair/ZX8081/Video.hpp
+++ b/Machines/Sinclair/ZX8081/Video.hpp
@@ -12,6 +12,7 @@
 #include "../../../Outputs/CRT/CRT.hpp"
 #include "../../../ClockReceiver/ClockReceiver.hpp"
 
+namespace Sinclair {
 namespace ZX8081 {
 
 /*!
@@ -57,6 +58,7 @@ class Video {
 		void flush(bool next_sync);
 };
 
+}
 }
 
 #endif /* Video_hpp */