diff --git a/src/rspro/constr_SEQUENCE.c b/src/rspro/constr_SEQUENCE.c
index 21e5190..0ffa282 100644
--- a/src/rspro/constr_SEQUENCE.c
+++ b/src/rspro/constr_SEQUENCE.c
@@ -166,7 +166,7 @@
 		}
 
 		if(ctx->left >= 0)
-			ctx->left += rval.consumed; /* ?Substracted below! */
+			ctx->left += rval.consumed; /* ?Subtracted below! */
 		ADVANCE(rval.consumed);
 
 		NEXT_PHASE(ctx);