diff --git a/compiler-rt/test/dfsan/origin_stack_trace.c b/compiler-rt/test/dfsan/origin_stack_trace.c
--- a/compiler-rt/test/dfsan/origin_stack_trace.c
+++ b/compiler-rt/test/dfsan/origin_stack_trace.c
@@ -43,7 +43,7 @@
   // CHECK-COUNT-8: #{{[0-9]+}} {{.*}} in bar.dfsan {{.*}}origin_stack_trace.c:[[@LINE-22]]
   // CHECK: #9 {{.*}} in baz.dfsan {{.*}}origin_stack_trace.c:[[@LINE-16]]
 
-  char buf[3000];
+  char buf[4096];
   size_t length = dfsan_sprint_origin_trace(&c, NULL, buf, sizeof(buf));
 
   printf("==OUTPUT==\n\n%s==EOS==\n", buf);