1 files changed, 3 insertions, 3 deletions
diff --git a/mrbgems/mruby-random/src/mt19937ar.h b/mrbgems/mruby-random/src/mt19937ar.h
index 9bf150190..59027c624 100644
--- a/mrbgems/mruby-random/src/mt19937ar.h
+++ b/mrbgems/mruby-random/src/mt19937ar.h
@@ -10,9 +10,9 @@ typedef struct {
   unsigned long mt[N];
   int mti;
   union {
-    unsigned long gen_int;
-    double gen_dbl;
-  };
+    unsigned long int_;
+    double double_;
+  } gen;
 
   mrb_int seed;
   mrb_bool has_seed : 1;