diff --git a/Dockerfile b/Dockerfile
index 9b753c0..3be9a59 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -66,7 +66,7 @@ ENV LIBXML_CFLAGS="-I/local/install/include/libxml2"
 
 # Configure PHP
 RUN cd php-src && \
-	emconfigure ./configure --enable-embed=static \
+	emconfigure ./configure --host=$(emcc -dumpmachine) --enable-embed=static \
 	--disable-all --without-pcre-jit --disable-fiber-asm --disable-cgi --disable-cli --disable-phpdbg \
 	--with-libxml --enable-simplexml --enable-xml --enable-xmlreader --enable-xmlwriter --enable-dom \
 	--enable-mbstring \