diff --git a/glslang/MachineIndependent/ParseHelper.cpp b/glslang/MachineIndependent/ParseHelper.cpp
index 569c9283..7b0f0660 100644
--- a/glslang/MachineIndependent/ParseHelper.cpp
+++ b/glslang/MachineIndependent/ParseHelper.cpp
@@ -4988,8 +4988,10 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
                 requireProfile(loc, ECoreProfile | ECompatibilityProfile, "fragment shader interlock layout qualifier");
                 profileRequires(loc, ECoreProfile | ECompatibilityProfile, 450, nullptr, "fragment shader interlock layout qualifier");
                 requireExtensions(loc, 1, &E_GL_ARB_fragment_shader_interlock, TQualifier::getInterlockOrderingString(order));
+#ifdef NV_EXTENSIONS
                 if (order == EioShadingRateInterlockOrdered || order == EioShadingRateInterlockUnordered)
                     requireExtensions(loc, 1, &E_GL_NV_shading_rate_image, TQualifier::getInterlockOrderingString(order));
+#endif
                 publicType.shaderQualifiers.interlockOrdering = order;
                 return;
             }