diff --git a/src/graphics/materials.cpp b/src/graphics/materials.cpp
index e6a5d6544..b999ef8ed 100644
--- a/src/graphics/materials.cpp
+++ b/src/graphics/materials.cpp
@@ -746,6 +746,7 @@ const std::tuple<size_t> SkinnedSolid::FirstPassTextures
     = std::tuple<size_t>(1);
 const std::tuple<size_t, size_t, size_t> SkinnedSolid::SecondPassTextures
     = std::tuple<size_t, size_t, size_t>(0, 1, 2);
+const std::tuple<> constexpr SkinnedSolid::ShadowTextures;
 const std::tuple<size_t> SkinnedSolid::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -774,6 +775,7 @@ const std::tuple<size_t, size_t> SkinnedNormalMat::FirstPassTextures
     = std::tuple<size_t, size_t>(3, 1);
 const std::tuple<size_t, size_t, size_t> SkinnedNormalMat::SecondPassTextures
     = std::tuple<size_t, size_t, size_t>(0, 1, 2);
+const std::tuple<> constexpr SkinnedNormalMat::ShadowTextures;
 const std::tuple<size_t> SkinnedNormalMat::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -782,6 +784,7 @@ const std::tuple<size_t> DefaultMaterial::FirstPassTextures
     = std::tuple<size_t>(1);
 const std::tuple<size_t, size_t, size_t> DefaultMaterial::SecondPassTextures
     = std::tuple<size_t, size_t, size_t>(0, 1, 2);
+const std::tuple<> constexpr DefaultMaterial::ShadowTextures;
 const std::tuple<size_t> DefaultMaterial::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -797,6 +800,7 @@ const std::tuple<size_t> AlphaRef::RSMTextures = std::tuple<size_t>(0);
 const InstanceType SphereMap::Instance = InstanceTypeThreeTex;
 const std::tuple<size_t> SphereMap::FirstPassTextures = std::tuple<size_t>(1);
 const std::tuple<size_t> SphereMap::SecondPassTextures = std::tuple<size_t>(0);
+const std::tuple<> constexpr SphereMap::ShadowTextures;
 const std::tuple<size_t> SphereMap::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -822,6 +826,7 @@ const std::tuple<size_t, size_t> NormalMat::FirstPassTextures
     = std::tuple<size_t, size_t>(3, 1);
 const std::tuple<size_t, size_t, size_t> NormalMat::SecondPassTextures
     = std::tuple<size_t, size_t, size_t>(0, 1, 2);
+const std::tuple<> constexpr NormalMat::ShadowTextures;
 const std::tuple<size_t> NormalMat::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -829,6 +834,7 @@ const InstanceType DetailMat::Instance = InstanceTypeFourTex;
 const std::tuple<size_t> DetailMat::FirstPassTextures = std::tuple<size_t>(1);
 const std::tuple<size_t, size_t, size_t> DetailMat::SecondPassTextures
     = std::tuple<size_t, size_t, size_t>(0, 3, 1);
+const std::tuple<> constexpr DetailMat::ShadowTextures;
 const std::tuple<size_t> DetailMat::RSMTextures = std::tuple<size_t>(0);
 
 // ----------------------------------------------------------------------------
@@ -837,6 +843,7 @@ const std::tuple<size_t> SplattingMat::FirstPassTextures
 const std::tuple<size_t, size_t, size_t, size_t, size_t>
     SplattingMat::SecondPassTextures
     = std::tuple<size_t, size_t, size_t, size_t, size_t>(1, 3, 4, 5, 6);
+const std::tuple<> constexpr SplattingMat::ShadowTextures;
 const std::tuple<size_t, size_t, size_t, size_t, size_t>
     SplattingMat::RSMTextures
     = std::tuple<size_t, size_t, size_t, size_t, size_t>(1, 3, 4, 5, 6);