1 files changed, 0 insertions, 1 deletions
diff --git a/math.c b/math.c
index a09d605911..9aff66333a 100644
--- a/math.c
+++ b/math.c
@@ -9,7 +9,6 @@
 
 **********************************************************************/
 
-#include "ruby/ruby.h"
 #include "internal.h"
 #include <float.h>
 #include <math.h>