diff --git a/src/render/OpenGL.cpp b/src/render/OpenGL.cpp
index c06c81dc..c1375ba5 100644
--- a/src/render/OpenGL.cpp
+++ b/src/render/OpenGL.cpp
@@ -559,6 +559,8 @@ void CHyprOpenGLImpl::applyScreenShader(const std::string& path) {
     m_sFinalScreenShader.time      = glGetUniformLocation(m_sFinalScreenShader.program, "time");
     m_sFinalScreenShader.wl_output = glGetUniformLocation(m_sFinalScreenShader.program, "wl_output");
     m_sFinalScreenShader.fullSize  = glGetUniformLocation(m_sFinalScreenShader.program, "screen_size");
+    if (m_sFinalScreenShader.fullSize == -1)
+        m_sFinalScreenShader.fullSize = glGetUniformLocation(m_sFinalScreenShader.program, "screenSize");
     if (m_sFinalScreenShader.time != -1 && *PDT != 0 && !g_pHyprRenderer->m_bCrashingInProgress) {
         // The screen shader uses the "time" uniform
         // Since the screen shader could change every frame, damage tracking *needs* to be disabled