Fix spelling

1 files changed, 1 insertions, 1 deletions

diff --git a/src/expr.h b/src/expr.h
index f14b936..871b120 100644
--- a/src/expr.h
+++ b/src/expr.h
@@ -146,7 +146,7 @@ struct bfs_expr {
 	/** Total time spent running this predicate. */
 	struct timespec elapsed;
 
-	/** Auxilliary data for the evaluation function. */
+	/** Auxiliary data for the evaluation function. */
 	union {
 		/** Child expressions. */
 		struct bfs_exprs children;