diff --git a/autoload/voom/voom_vimplugin2657/voom_mode_markdown.py b/autoload/voom/voom_vimplugin2657/voom_mode_markdown.py
index 67a47b1..7468c91 100644
--- a/autoload/voom/voom_vimplugin2657/voom_mode_markdown.py
+++ b/autoload/voom/voom_vimplugin2657/voom_mode_markdown.py
@@ -60,6 +60,7 @@ def hook_makeOutline(VO, blines):
 
     L2 = blines[0].rstrip() # first Body line
     isHead = False
+    isInCodeBlock = False
     for i in xrange(Z):
         L1 = L2
         j = i+1
@@ -70,6 +71,11 @@ def hook_makeOutline(VO, blines):
 
         if not L1:
             continue
+        
+        if L1.strip().startswith('```'):
+            isInCodeBlock = not isInCodeBlock
+        if isInCodeBlock:
+            continue
 
         if L2 and (L2[0] in ADS_LEVELS) and not L2.lstrip(L2[0]):
             isHead = True