diff --git a/src/core/PICA/shader_gen_glsl.cpp b/src/core/PICA/shader_gen_glsl.cpp
index 50be94f0..0e51ad93 100644
--- a/src/core/PICA/shader_gen_glsl.cpp
+++ b/src/core/PICA/shader_gen_glsl.cpp
@@ -358,13 +358,13 @@ void FragmentGenerator::getAlphaOperation(std::string& shader, TexEnvConfig::Ope
 
 void FragmentGenerator::applyAlphaTest(std::string& shader, const PICARegs& regs) {
 	const u32 alphaConfig = regs[InternalRegs::AlphaTestConfig];
+	const auto function = static_cast<CompareFunction>(Helpers::getBits<4, 3>(alphaConfig));
+
 	// Alpha test disabled
-	if (Helpers::getBit<0>(alphaConfig) == 0) {
+	if (Helpers::getBit<0>(alphaConfig) == 0 || function == CompareFunction::Always) {
 		return;
 	}
 
-	const auto function = static_cast<CompareFunction>(Helpers::getBits<4, 3>(alphaConfig));
-
 	shader += "if (";
 	switch (function) {
 		case CompareFunction::Never: shader += "true"; break;