diff --git a/SysBuild/xserv/xextproto b/SysBuild/xserv/xextproto
index 806141d..7de321a 100644
--- a/SysBuild/xserv/xextproto
+++ b/SysBuild/xserv/xextproto
@@ -78,6 +78,7 @@ premk() {
 mk32() {
 	CC="gcc $BUILDOPTIONS32" \
 	CXX="g++ $BUILDOPTIONS32" \
+	USE_ARCH=32 \
 	./configure --host=$TARGET \
 		    --localstatedir=/var \
 		    --infodir=/usr/share/info \
@@ -94,6 +95,7 @@ mk() {
 	fi
 	CC="gcc $BUILDOPTIONS" \
 	CXX="g++ $BUILDOPTIONS" \
+	USE_ARCH=64 \
 	./configure --host=$TARGET \
 		    --localstatedir=/var \
 		    --infodir=/usr/share/info \
diff --git a/SysBuild/xserv/xproto b/SysBuild/xserv/xproto
index d4ecd7f..83b9493 100644
--- a/SysBuild/xserv/xproto
+++ b/SysBuild/xserv/xproto
@@ -78,6 +78,7 @@ premk() {
 mk32() {
 	CC="gcc $BUILDOPTIONS32" \
 	CXX="g++ $BUILDOPTIONS32" \
+	USE_ARCH=32 \
 	./configure --host=$TARGET \
 		    --localstatedir=/var \
 		    --infodir=/usr/share/info \
@@ -94,6 +95,7 @@ mk() {
 	fi
 	CC="gcc $BUILDOPTIONS" \
 	CXX="g++ $BUILDOPTIONS" \
+	USE_ARCH=64 \
 	./configure --host=$TARGET \
 		    --localstatedir=/var \
 		    --infodir=/usr/share/info \