diff --git a/scripts/src/3rdparty.lua b/scripts/src/3rdparty.lua
index 10e3efeb16ac7..8beeab7a6264e 100755
--- a/scripts/src/3rdparty.lua
+++ b/scripts/src/3rdparty.lua
@@ -866,6 +866,7 @@ project "7z"
 	configuration { "gmake or ninja" }
 		buildoptions_c {
 			"-Wno-error=undef",
+			"-Wno-error=strict-prototypes"
 		}
 if _OPTIONS["gcc"]~=nil then
 	if string.find(_OPTIONS["gcc"], "clang") then