diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 38206bfe013..b48162d75a1 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -734,7 +734,7 @@ def buildPythonDocs():
     curDir = os.getcwd()
     os.chdir(buildDir)
     runCommand('make update')
-    runCommand('make html')
+    runCommand("make html PYTHON='%s'" % os.path.abspath(sys.executable))
     os.chdir(curDir)
     if not os.path.exists(docdir):
         os.mkdir(docdir)