diff --git a/engine/wscript b/engine/wscript
index 69098e57..8b846a64 100644
--- a/engine/wscript
+++ b/engine/wscript
@@ -223,6 +223,18 @@ def build(bld):
 		if bld.env.DEST_OS in ['nswitch', 'psvita', 'emscripten']:
 			install_path = None
 
+		linkflags = []
+
+		if bld.env.DEST_OS == 'emscripten':
+			linkflags = ['-sINITIAL_MEMORY=134217728', '-sALLOW_MEMORY_GROWTH=1', '-sSTACK_SIZE=16777216']
+
+			linkflags += ['-sASYNCIFY=1']
+
+			node = bld.srcnode.find_node('rodir')
+			if not node:
+				bld.fatal('Put game data into rodir folder in source tree root')
+			linkflags += ['--preload-file', '%s@/rodir' % node.path_from(bld.bldnode)]
+
 		f(source = source,
 			target = 'xash',
 			includes = includes,
@@ -237,4 +249,5 @@ def build(bld):
 			title_id = 'XASH10000',
 			app_name = 'xash3d-fwgs',
 			rpath = bld.env.DEFAULT_RPATH,
+			linkflags = linkflags,
 		)