diff --git a/src/RawModel.cpp b/src/RawModel.cpp
index f9ffee7..8b3e134 100644
--- a/src/RawModel.cpp
+++ b/src/RawModel.cpp
@@ -10,6 +10,7 @@
 #include <vector>
 #include <string>
 #include <unordered_map>
+#include <cmath>
 #include <map>
 
 #if defined( __unix__ )
@@ -21,11 +22,6 @@
 #include "utils/Image_Utils.h"
 #include "RawModel.h"
 
-static float Log2f(float f)
-{
-    return logf(f) * 1.442695041f;
-}
-
 bool RawVertex::operator==(const RawVertex &other) const
 {
     return (position == other.position) &&
@@ -101,7 +97,7 @@ int RawModel::AddTexture(const std::string &name, const std::string &fileName, c
     texture.name         = name;
     texture.width        = properties.width;
     texture.height       = properties.height;
-    texture.mipLevels    = (int) ceilf(Log2f(std::max((float) properties.width, (float) properties.height)));
+    texture.mipLevels    = (int) ceilf(log2f(std::max((float) properties.width, (float) properties.height)));
     texture.usage        = usage;
     texture.occlusion    = (properties.occlusion == IMAGE_TRANSPARENT) ?
                            RAW_TEXTURE_OCCLUSION_TRANSPARENT : RAW_TEXTURE_OCCLUSION_OPAQUE;