1 files changed, 1 insertions, 1 deletions
diff --git a/struct.c b/struct.c
index c59a7ee6b4..7270c7d514 100644
--- a/struct.c
+++ b/struct.c
@@ -14,7 +14,7 @@
 
 VALUE rb_cStruct;
 
-static VALUE struct_alloc _((VALUE));
+static VALUE struct_alloc(VALUE);
 
 VALUE
 rb_struct_iv_get(VALUE c, char *name)