diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 393ca6a89..b8765c1a6 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -533,6 +533,11 @@ CocoaVideo::CocoaVideo()
 		// There is no support for OpenGL 3.3 before Mavericks
 		defaultProfile = NSOpenGLProfileVersionLegacy;
 	}
+	else if (0 == vid_renderer && 0 == vid_glswfb)
+	{
+		// Software renderer uses OpenGL 2.1 for blitting
+		defaultProfile = NSOpenGLProfileVersionLegacy;
+	}
 	else if (const char* const glversion = Args->CheckValue("-glversion"))
 	{
 		// Check for explicit version specified in command line