diff --git a/markdown_include/include.py b/markdown_include/include.py
index 8a039fa..5463cd5 100644
--- a/markdown_include/include.py
+++ b/markdown_include/include.py
@@ -109,13 +109,13 @@ def run(self, lines):
                         # Strip the newline, and optionally increase header depth
                         if self.inheritHeadingDepth or self.headingOffset:
                             if HEADING_SYNTAX.search(text[i]):
-                                text[i] = text[i].rstrip('\n')
+                                text[i] = text[i].rstrip('\r\n')
                                 if self.inheritHeadingDepth:
                                     text[i] = bonusHeading + text[i]
                                 if self.headingOffset:
                                     text[i] = '#' * self.headingOffset + text[i]
                         else:
-                            text[i] = text[i].rstrip('\n')
+                            text[i] = text[i].rstrip('\r\n')
                             
                     text[0] = line_split[0] + text[0]
                     text[-1] = text[-1] + line_split[2]