diff --git a/premake/libtomcrypt.lua b/premake/libtomcrypt.lua
index b360a8e8..f955b59a 100644
--- a/premake/libtomcrypt.lua
+++ b/premake/libtomcrypt.lua
@@ -57,5 +57,6 @@ function libtomcrypt.project()
 
 		defines { "_LIB" }
 		removedefines { "_DLL", "_USRDLL" }
+		linkoptions { "-IGNORE:4221" }
 		kind "StaticLib"
 end
diff --git a/premake/libtommath.lua b/premake/libtommath.lua
index c5f3cc58..910c1873 100644
--- a/premake/libtommath.lua
+++ b/premake/libtommath.lua
@@ -41,5 +41,6 @@ function libtommath.project()
 
 		defines { "_LIB" }
 		removedefines { "_DLL", "_USRDLL" }
+		linkoptions { "-IGNORE:4221" }
 		kind "StaticLib"
 end