1 files changed, 1 insertions, 1 deletions

diff --git a/Spear/Math/Matrix4.hs b/Spear/Math/Matrix4.hs
index 12eb031..16f7c93 100644
--- a/Spear/Math/Matrix4.hs
+++ b/Spear/Math/Matrix4.hs
@@ -419,7 +419,7 @@ perspective fovy r near far =
     in mat4

         (f/r) 0    0              0

         0     f    0              0

-        0     0    ((near+far)/a) (2*near*far/a)

+        0     0    ((far+near)/a) (2*far*near/a)

         0     0    (-1)           0