diff --git a/premake5.lua b/premake5.lua
index dfc04e2b..44314aa5 100644
--- a/premake5.lua
+++ b/premake5.lua
@@ -1,6 +1,3 @@
--- protoc tool
-protocBinPath = path.translate(path.join(_MAIN_SCRIPT_DIR, "tools", "protoc.exe"))
-
 -- Option to allow copying the DLL file to a custom folder after build
 newoption {
 	trigger = "copy-to",
@@ -132,6 +129,12 @@ workspace "iw4x"
 			"./deps/protobuf/src",
 			"./deps/Wink-Signals",
 		}
+		
+		-- fix vpaths for protobuf sources
+		vpaths {
+			["*"] = { "./src/**" },
+			["Proto/*"] = { "./build/src/proto/**" }, -- seems like we need 'build' here
+		}
 
 		-- Virtual paths
 		if not _OPTIONS["no-new-structure"] then