diff --git a/Plugins/CaptionMod/DpiManager.cpp b/Plugins/CaptionMod/DpiManager.cpp
index 21106320..02d6b69e 100644
--- a/Plugins/CaptionMod/DpiManager.cpp
+++ b/Plugins/CaptionMod/DpiManager.cpp
@@ -112,6 +112,9 @@ class CDpiManager : public IDpiManager
 		if (g_iEngineType == ENGINE_GOLDSRC_HL25)
 			m_bIsHighDpiSupported = false;
 
+		if (g_iVideoHeight < g_iProportionalBaseHeightHD)
+			m_bIsHighDpiSupported = false;;
+
 		if (IsHighDpiSupportEnabled())
 		{
 			char temp[1024];