--- a/eric6/Preferences/__init__.py	Sun Oct 27 19:20:41 2019 +0100
+++ b/eric6/Preferences/__init__.py	Mon Oct 28 19:12:37 2019 +0100
@@ -481,7 +481,7 @@
         "PreviewRestFileNameExtensions": ["rst"],
         "PreviewQssFileNameExtensions": ["qss"],
         "PreviewRestUseSphinx": False,
-        "PreviewMarkdownNLtoBR": True,
+        "PreviewMarkdownNLtoBR": False,
         "PreviewMarkdownUsePyMdownExtensions": True,
         "PreviewMarkdownMathJax": True,
         "PreviewMarkdownMermaid": True,