diff --git a/Makefile b/Makefile
index 9b852c3243..20040a1a2b 100644
--- a/Makefile
+++ b/Makefile
@@ -472,6 +472,7 @@ libs: $(LIBS_TO_INSTALL_IN_BIN) $(LIBS_TO_INSTALL_IN_LIB) $(COMMERCIAL_LIBS)
 commercial-libs: $(COMMERCIAL_LIBS)
 tools: $(TOOL_APPS)
 apps: $(TOOL_APPS) $(VIEW_APPS)
+libmupdf-threads: $(THREAD_LIB)
 
 install-headers:
 	install -d $(DESTDIR)$(incdir)/mupdf
diff --git a/scripts/wrap/__main__.py b/scripts/wrap/__main__.py
index ddd23a2815..6b857680dc 100644
--- a/scripts/wrap/__main__.py
+++ b/scripts/wrap/__main__.py
@@ -1161,6 +1161,8 @@ def _get_m_command( build_dirs, j=None, make=None, m_target=None, m_vars=None):
     if m_target:
         for t in m_target.split(','):
             make_args += f' {t}'
+    else:
+        make_args += f' libs libmupdf-threads'
     command = f'cd {build_dirs.dir_mupdf} &&'
     if make_env:
         command += make_env
@@ -1629,7 +1631,7 @@ def fn(name):
                             f' platform/{win32_infix}/mupdf.sln'
                             f' /Build "{build}"'
                             )
-                    projects = ['mupdfcpp']
+                    projects = ['mupdfcpp', 'libmuthreads']
                     if m_target:
                         projects += m_target.split(',')
                     for project in projects: