diff --git a/common/accel-lookup.hpp b/common/accel-lookup.hpp
index 493a7a4..920df1c 100644
--- a/common/accel-lookup.hpp
+++ b/common/accel-lookup.hpp
@@ -32,6 +32,16 @@ namespace rawaccel {
 		}
 	};
 
+	__forceinline
+	constexpr double lerp(double a, double b, double t)
+	{
+		double x = a + t * (b - a);
+		if ((t > 1) == (a < b)) {
+			return maxsd(x, b);
+		}
+		return minsd(x, b);
+	}
+
 	struct lookup {
 		enum { capacity = LUT_POINTS_CAPACITY };
 
diff --git a/common/utility.hpp b/common/utility.hpp
index 63026c3..2587d91 100644
--- a/common/utility.hpp
+++ b/common/utility.hpp
@@ -35,15 +35,6 @@ namespace rawaccel {
         return (v < lo) ? lo : (hi < v) ? hi : v;
     }
 
-    constexpr double lerp(double a, double b, double t)
-    {
-        double x = a + t * (b - a);
-        if ((t > 1) == (a < b)) {
-            return maxsd(x, b);
-        }
-        return minsd(x, b);
-    }
-
     // returns the unbiased exponent of x if x is normal 
     inline int ilogb(double x)
     {