diff --git a/apps/openmw/mwrender/localmap.cpp b/apps/openmw/mwrender/localmap.cpp
index c7f90bc5f3..7f3132a9e9 100644
--- a/apps/openmw/mwrender/localmap.cpp
+++ b/apps/openmw/mwrender/localmap.cpp
@@ -204,8 +204,10 @@ osg::ref_ptr<osg::Camera> LocalMap::createOrthographicCamera(float x, float y, f
 
     osg::ref_ptr<osg::Image> fakeShadowMapImage = new osg::Image();
     fakeShadowMapImage->allocateImage(1, 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT);
-    *(float*)fakeShadowMapImage->data() = -std::numeric_limits<float>::infinity(); // this has been tried both positive and negative
+    *(float*)fakeShadowMapImage->data() = std::numeric_limits<float>::infinity();
     osg::ref_ptr<osg::Texture> fakeShadowMapTexture = new osg::Texture2D(fakeShadowMapImage);
+    fakeShadowMapTexture->setShadowComparison(true);
+    fakeShadowMapTexture->setShadowCompareFunc(osg::Texture::ShadowCompareFunc::ALWAYS);
     for (int i = SceneUtil::MWShadow::baseShadowTextureUnit; i < SceneUtil::MWShadow::baseShadowTextureUnit + SceneUtil::MWShadow::numberOfShadowMapsPerLight; ++i)
         stateset->setTextureAttributeAndModes(i, fakeShadowMapTexture, osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE | osg::StateAttribute::PROTECTED);