diff --git a/example/web/build-openssl.sh b/example/web/build-openssl.sh
index faf4f657..ec339d54 100755
--- a/example/web/build-openssl.sh
+++ b/example/web/build-openssl.sh
@@ -15,6 +15,7 @@ cd openssl-$OPENSSL
 emconfigure ./Configure linux-generic32 no-shared no-dso no-engine no-unit-test no-ui || exit 1
 sed -i.bak 's/CROSS_COMPILE=.*/CROSS_COMPILE=/g' Makefile || exit 1
 sed -i.bak 's/-ldl //g' Makefile || exit 1
+sed -i.bak 's/-O3/-Os/g' Makefile || exit 1
 echo "Building OpenSSL..."
 emmake make depend || exit 1
 emmake make -j 4 || exit 1
diff --git a/tdnet/CMakeLists.txt b/tdnet/CMakeLists.txt
index ab81cecd..ed15325d 100644
--- a/tdnet/CMakeLists.txt
+++ b/tdnet/CMakeLists.txt
@@ -48,7 +48,11 @@ set(TDNET_SOURCE
 add_library(tdnet STATIC ${TDNET_SOURCE})
 target_include_directories(tdnet PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>)
 target_include_directories(tdnet SYSTEM PRIVATE $<BUILD_INTERFACE:${OPENSSL_INCLUDE_DIR}>)
-target_link_libraries(tdnet PUBLIC tdutils tdactor PRIVATE ${CMAKE_DL_LIBS} ${OPENSSL_LIBRARIES} ${ZLIB_LIBRARIES})
+target_link_libraries(tdnet PUBLIC tdutils tdactor PRIVATE ${CMAKE_DL_LIBS} ${ZLIB_LIBRARIES})
+target_link_libraries(tdnet PRIVATE ${OPENSSL_CRYPTO_LIBRARY})
+if (NOT EMSCRIPTEN)
+ target_link_libraries(tdnet PRIVATE ${OPENSSL_SSL_LIBRARY})
+endif()
 
 if (WIN32)
   target_link_libraries(tdnet PRIVATE Crypt32)
diff --git a/tdnet/td/net/SslStream.cpp b/tdnet/td/net/SslStream.cpp
index b737b34b..3f0c93b9 100644
--- a/tdnet/td/net/SslStream.cpp
+++ b/tdnet/td/net/SslStream.cpp
@@ -6,6 +6,7 @@
 //
 #include "td/net/SslStream.h"
 
+#if !TD_EMSCRIPTEN
 #include "td/utils/common.h"
 #include "td/utils/logging.h"
 #include "td/utils/misc.h"
@@ -541,3 +542,34 @@ size_t SslStream::flow_write(Slice slice) {
 }
 
 }  // namespace td
+#else 
+namespace td {
+namespace detail {
+class SslStreamImpl {
+};
+}
+SslStream::SslStream() = default;
+SslStream::SslStream(SslStream &&) = default;
+SslStream &SslStream::operator=(SslStream &&) = default;
+SslStream::~SslStream() = default;
+
+Result<SslStream> SslStream::create(CSlice host, CSlice cert_file, VerifyPeer verify_peer) {
+  return Status::Error("Not supported in emscripten");
+}
+SslStream::SslStream(unique_ptr<detail::SslStreamImpl> impl) : impl_(std::move(impl)) {
+}
+ByteFlowInterface &SslStream::read_byte_flow() {
+  UNREACHABLE();
+}
+ByteFlowInterface &SslStream::write_byte_flow() {
+  UNREACHABLE();
+}
+size_t SslStream::flow_read(MutableSlice slice) {
+  UNREACHABLE();
+}
+size_t SslStream::flow_write(Slice slice) {
+  UNREACHABLE();
+}
+
+}  // namespace td
+#endif