diff --git a/code/client/cl_main.c b/code/client/cl_main.c
index 4700c9be..c345c973 100644
--- a/code/client/cl_main.c
+++ b/code/client/cl_main.c
@@ -256,7 +256,7 @@ void CL_Voip_f( void )
 		reason = "Speex not initialized";
 	else if (!clc.voipEnabled)
 		reason = "Server doesn't support VoIP";
-	else if ( Cvar_VariableValue( "g_gametype" ) == GT_SINGLE_PLAYER || Cvar_VariableValue("ui_singlePlayerActive"))
+	else if (!clc.demoplaying && (Cvar_VariableValue( "g_gametype" ) == GT_SINGLE_PLAYER || Cvar_VariableValue("ui_singlePlayerActive")))
 		reason = "running in single-player mode";
 
 	if (reason != NULL) {