Avoid Coverity warnings for case that should never fail.

1 files changed, 2 insertions, 1 deletions

diff --git a/lexlib/SubStyles.h b/lexlib/SubStyles.h
index 579107819..f5b15e9cf 100644
--- a/lexlib/SubStyles.h
+++ b/lexlib/SubStyles.h
@@ -166,7 +166,8 @@ public:
 	}
 
 	const WordClassifier &Classifier(int baseStyle) const {
-		return classifiers[BlockFromBaseStyle(baseStyle)];
+		const int block = BlockFromBaseStyle(baseStyle);
+		return classifiers[block >= 0 ? block : 0];
 	}
 };