diff --git a/raylib/rlgl_purego.go b/raylib/rlgl_purego.go
index ccb5029..9c6d3d1 100644
--- a/raylib/rlgl_purego.go
+++ b/raylib/rlgl_purego.go
@@ -16,6 +16,7 @@ var rlLoadIdentity func()
 var rlTranslatef func(x float32, y float32, z float32)
 var rlRotatef func(angle float32, x float32, y float32, z float32)
 var rlScalef func(x float32, y float32, z float32)
+var rlMultMatrix func(m []float32)
 var rlFrustum func(left float64, right float64, bottom float64, top float64, znear float64, zfar float64)
 var rlOrtho func(left float64, right float64, bottom float64, top float64, znear float64, zfar float64)
 var rlViewport func(x int32, y int32, width int32, height int32)
@@ -138,6 +139,7 @@ func initRlglPurego() {
 	purego.RegisterLibFunc(&rlTranslatef, raylibDll, "rlTranslatef")
 	purego.RegisterLibFunc(&rlRotatef, raylibDll, "rlRotatef")
 	purego.RegisterLibFunc(&rlScalef, raylibDll, "rlScalef")
+	purego.RegisterLibFunc(&rlMultMatrix, raylibDll, "rlMultMatrix")
 	purego.RegisterLibFunc(&rlFrustum, raylibDll, "rlFrustum")
 	purego.RegisterLibFunc(&rlOrtho, raylibDll, "rlOrtho")
 	purego.RegisterLibFunc(&rlViewport, raylibDll, "rlViewport")