diff --git a/lib/libimhex/source/api/imhex_api.cpp b/lib/libimhex/source/api/imhex_api.cpp
index 49a180c10..756a12fae 100644
--- a/lib/libimhex/source/api/imhex_api.cpp
+++ b/lib/libimhex/source/api/imhex_api.cpp
@@ -638,7 +638,8 @@ namespace hex {
             #elif defined(OS_MACOS)
                 return ::getBackingScaleFactor();
             #elif defined(OS_LINUX)
-                if (std::string_view(::getenv("XDG_SESSION_TYPE")) == "x11")
+                const auto sessionType = ::getenv("XDG_SESSION_TYPE");
+                if (sessionType == nullptr || std::string_view(sessionType) == "x11")
                     return 1.0F;
                 else {
                     float xScale = 0, yScale = 0;