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-rw-r--r--src/test/codegen/ffi-pure.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/test/codegen/ffi-pure.rs b/src/test/codegen/ffi-pure.rs
index f0ebc1caa09..3afb0856c9d 100644
--- a/src/test/codegen/ffi-pure.rs
+++ b/src/test/codegen/ffi-pure.rs
@@ -4,7 +4,7 @@
 
 pub fn bar() { unsafe { foo() } }
 
-extern {
+extern "C" {
     // CHECK-LABEL: declare void @foo()
     // CHECK-SAME: [[ATTRS:#[0-9]+]]
     // CHECK-DAG: attributes [[ATTRS]] = { {{.*}}readonly{{.*}} }