diff --git a/tools/matchcompiler.py b/tools/matchcompiler.py
index 38d53d1bc..f9c0a71cd 100755
--- a/tools/matchcompiler.py
+++ b/tools/matchcompiler.py
@@ -157,7 +157,7 @@ class MatchCompiler:
                 ret += '        ' + returnStatement
 
             # a|b|c
-            elif tok.find('|') > 0:
+            elif tok.find('|') >= 0 and tok != '||' and tok != '|' and tok != '|=':
                 tokens2 = tok.split('|')
                 logicalOp = None
                 neg = None