diff --git a/src/cocoa/i_backend_cocoa.mm b/src/cocoa/i_backend_cocoa.mm
index ff602cb9db..873b34c032 100644
--- a/src/cocoa/i_backend_cocoa.mm
+++ b/src/cocoa/i_backend_cocoa.mm
@@ -43,6 +43,7 @@
 #include <Carbon/Carbon.h>
 #include <OpenGL/OpenGL.h>
 #include <OpenGL/gl.h>
+#include <OpenGL/glext.h>
 
 #include <SDL.h>
 
@@ -1214,16 +1215,16 @@ static ApplicationController* appCtrl;
 {
 	if (0 == m_softwareRenderingTexture)
 	{
-		glEnable(GL_TEXTURE_2D);
+		glEnable(GL_TEXTURE_RECTANGLE_ARB);
 
 		glGenTextures(1, &m_softwareRenderingTexture);
-		glBindTexture(GL_TEXTURE_2D, m_softwareRenderingTexture);
+		glBindTexture(GL_TEXTURE_RECTANGLE_ARB, m_softwareRenderingTexture);
 
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+		glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+		glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+		glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+		glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 	}
 
 	delete[] m_softwareRenderingBuffer;
@@ -1750,18 +1751,18 @@ int SDL_Flip(SDL_Surface* screen)
 	const int width  = screen->w;
 	const int height = screen->h;
 	
-	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8,
+	glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8,
 		width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, screen->pixels);
 
 	glBegin(GL_QUADS);
 	glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 	glTexCoord2f(0.0f, 0.0f);
 	glVertex2f(0.0f, 0.0f);
-	glTexCoord2f(1.0f, 0.0f);
+	glTexCoord2f(width, 0.0f);
 	glVertex2f(width, 0.0f);
-	glTexCoord2f(1.0f, 1.0f);
+	glTexCoord2f(width, height);
 	glVertex2f(width, height);
-	glTexCoord2f(0.0f, 1.0f);
+	glTexCoord2f(0.0f, height);
 	glVertex2f(0.0f, height);
 	glEnd();