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-rw-r--r--scripts/tracetool/__init__.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index 7237abe0e8..bc03238c0f 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -301,6 +301,8 @@ class Event(object):
         if fmt.endswith(r'\n"'):
             raise ValueError("Event format must not end with a newline "
                              "character")
+        if '\\n' in fmt:
+            raise ValueError("Event format must not use new line character")
 
         if len(fmt_trans) > 0:
             fmt = [fmt_trans, fmt]