diff --git a/src/game/game.cpp b/src/game/game.cpp
index b9e58a9..91a333a 100644
--- a/src/game/game.cpp
+++ b/src/game/game.cpp
@@ -553,7 +553,7 @@ namespace game
 			InterlockedDecrement(&critSect->readCount);
 		}
 
-		void Sys_OutOfMemErrorInternal(const char* filename, int line)
+		[[noreturn]] void Sys_OutOfMemErrorInternal(const char* filename, int line)
 		{
 			Sys_EnterCriticalSection(CRITSECT_FATAL_ERROR);
 
diff --git a/src/game/game.hpp b/src/game/game.hpp
index 4eccf19..d2fbb04 100644
--- a/src/game/game.hpp
+++ b/src/game/game.hpp
@@ -393,7 +393,7 @@ namespace game
 		bool Sys_IsServerThread();
 		void Sys_LockRead(FastCriticalSection* critSect);
 		void Sys_UnlockRead(FastCriticalSection* critSect);
-		void Sys_OutOfMemErrorInternal(const char* filename, int line);
+		[[noreturn]] void Sys_OutOfMemErrorInternal(const char* filename, int line);
 
 		bool FS_Initialized();
 		int FS_FOpenFileReadForThread(const char* filename, int* file, FsThread thread);