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-rw-r--r--lr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lr.c b/lr.c
index dc31d6c..02d092e 100644
--- a/lr.c
+++ b/lr.c
@@ -264,7 +264,7 @@ doit:
 		switch (op) {
 		case '-': newmode &= ~(whom & what); break;
 		case '+': newmode |= (whom & what); break;
-		case '=': newmode &= ~whom; newmode |= (whom & what); break;
+		case '=': newmode = (newmode & ~whom) | (whom & what); break;
 		}
 	} while (*c == ',' && c++);