diff --git a/src/basics.h b/src/basics.h
index 2c57a79..0f535bc 100644
--- a/src/basics.h
+++ b/src/basics.h
@@ -18,18 +18,6 @@
 using charles::Double;
 
 
-/**
- * A very small constant. If a value is between EPSILON and 0.0, it is
- * considered to be zero.
- */
-const Double EPSILON = 1.0e-10;
-
-/**
- * The maximum distance a ray can travel. This is the maximum value t can be.
- */
-const Double MAX_DISTANCE = 1.0e7;
-
-
 /**
  * Determine if the value is "close enough" to zero. Takes the absolute value
  * and compares it to `EPSILON`.
diff --git a/src/basics/basics.hh b/src/basics/basics.hh
index 8a556e8..4fd3a25 100644
--- a/src/basics/basics.hh
+++ b/src/basics/basics.hh
@@ -13,4 +13,17 @@
 #include "basics/types.hh"
 #include "basics/vector.hh"
 
+
+/**
+ * A very small constant. If a value is between EPSILON and 0.0, it is
+ * considered to be zero.
+ */
+const Double EPSILON = 1.0e-10;
+
+/**
+ * The maximum distance a ray can travel. This is the maximum value t can be.
+ */
+const Double MAX_DISTANCE = 1.0e7;
+
+
 #endif /* __BASICS_BASICS_HH__ */