diff --git a/scripts/graphstats.py b/scripts/graphstats.py
index 452cff72..26e6c606 100755
--- a/scripts/graphstats.py
+++ b/scripts/graphstats.py
@@ -34,7 +34,7 @@ def parse_log(logname, mcu):
         prefix = ""
         keyparts = {}
         for p in parts[2:]:
-            if p.endswith(':'):
+            if '=' not in p:
                 prefix = p
                 if prefix == mcu_prefix:
                     prefix = ''
diff --git a/scripts/logextract.py b/scripts/logextract.py
index 00d60c93..17584cbb 100755
--- a/scripts/logextract.py
+++ b/scripts/logextract.py
@@ -112,7 +112,7 @@ class GatherShutdown:
         mcu = ""
         keyparts = {}
         for p in parts[2:]:
-            if p.endswith(':'):
+            if '=' not in p:
                 mcu = p
                 continue
             name, val = p.split('=', 1)