diff --git a/cl_dll/ui/hud/OpenAG/hud_strafeguide.cpp b/cl_dll/ui/hud/OpenAG/hud_strafeguide.cpp
index b4bf9d7..76ec823 100644
--- a/cl_dll/ui/hud/OpenAG/hud_strafeguide.cpp
+++ b/cl_dll/ui/hud/OpenAG/hud_strafeguide.cpp
@@ -9,6 +9,8 @@
 #include "pm_movevars.h"
 #include "ref_params.h"
 
+#include "demo_api.h"
+
 enum border {
 	RED_GREEN,
 	GREEN_WHITE,
@@ -36,7 +38,7 @@ int CHudStrafeGuide::VidInit()
 
 int CHudStrafeGuide::Draw(float time)
 {
-	if (hud_strafeguide->value == 0)
+	if (hud_strafeguide->value == 0 || gEngfuncs.pDemoAPI->IsPlayingback())
 		return 0;
 
 	double fov  = CVAR_GET_FLOAT( "default_fov" ) / 180 * M_PI / 2;
diff --git a/cl_dll/view.cpp b/cl_dll/view.cpp
index bfc8433..9cd3958 100644
--- a/cl_dll/view.cpp
+++ b/cl_dll/view.cpp
@@ -27,6 +27,8 @@
 #include "hltv.h"
 #include "view.h"
 
+#include "demo_api.h"
+
 // Spectator Mode
 extern "C" 
 {
@@ -1644,7 +1646,10 @@ void DLLEXPORT V_CalcRefdef( struct ref_params_s *pparams )
 	// OpenAG
 	gHUD.m_Speedometer.UpdateSpeed(pparams->simvel);
 	gHUD.m_Jumpspeed.UpdateSpeed(pparams->simvel);
-	gHUD.m_StrafeGuide.Update(pparams);
+
+	// FIXME: Why does an error occur when viewing DEMO?
+	if (!gEngfuncs.pDemoAPI->IsPlayingback())
+		gHUD.m_StrafeGuide.Update(pparams);
 
 	// intermission / finale rendering
 	if( pparams->intermission )