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-rw-r--r--rule_parser.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/rule_parser.go b/rule_parser.go
index 729f2d3..8b8fef7 100644
--- a/rule_parser.go
+++ b/rule_parser.go
@@ -50,7 +50,7 @@ func (r *Rule) parseVar(s string) *AssignAST {
assign.filename = r.filename
assign.lineno = r.lineno
// TODO(ukai): support override, export.
- switch s[eq-1 : eq] {
+ switch s[eq-1 : eq+1] {
case ":=":
assign.lhs = strings.TrimSpace(s[:eq-1])
assign.op = ":="