1 files changed, 1 insertions, 0 deletions
diff --git a/math.c b/math.c
index e531e88ffe..f03a009847 100644
--- a/math.c
+++ b/math.c
@@ -139,6 +139,7 @@ Init_Math()
     rb_define_module_function(mMath, "exp", math_exp, 1);
     rb_define_module_function(mMath, "log", math_log, 1);
     rb_define_module_function(mMath, "log10", math_log10, 1);
+    rb_define_module_function(mMath, "sqrt", math_sqrt, 1);
 
     rb_define_module_function(mMath, "frexp", math_frexp, 1);
     rb_define_module_function(mMath, "ldexp", math_ldexp, 2);