diff --git a/panda/src/dxgsg/config_dxgsg.cxx b/panda/src/dxgsg/config_dxgsg.cxx
index 5820a285f3..07e75c7dd8 100644
--- a/panda/src/dxgsg/config_dxgsg.cxx
+++ b/panda/src/dxgsg/config_dxgsg.cxx
@@ -30,7 +30,7 @@ float dx_global_miplevel_bias = config_dxgsg.GetFloat("dx-global-miplevel-bias",
 
 bool dx_force_16bpp_screenbuffers = config_dxgsg.GetBool("dx-force-16bpp-screenbuffers", false);
 bool dx_show_fps_meter = config_dxgsg.GetBool("show-fps-meter", false);
-float dx_fps_meter_update_interval = config_dxgsg.GetFloat("fps-meter-update-interval", 1.7);
+float dx_fps_meter_update_interval = max(0.5,config_dxgsg.GetFloat("fps-meter-update-interval", 1.7));
 
 #ifdef _DEBUG
 bool dx_debug_view_mipmaps = config_dxgsg.GetBool("dx-debug-view-mipmaps", false);