diff --git a/gfx/drivers_shader/shader_gl3.cpp b/gfx/drivers_shader/shader_gl3.cpp
index d1f75cb3a1..2505742d13 100644
--- a/gfx/drivers_shader/shader_gl3.cpp
+++ b/gfx/drivers_shader/shader_gl3.cpp
@@ -1941,7 +1941,7 @@ bool gl3_filter_chain::init_alias()
       if (name.empty())
          continue;
 
-      j = &passes[i] - passes.data();
+      j = (unsigned)(&passes[i] - passes.data());
 
       if (!slang_set_unique_map(common.texture_semantic_map, name,
                slang_texture_semantic_map{ SLANG_TEXTURE_SEMANTIC_PASS_OUTPUT, j }))
@@ -1965,7 +1965,7 @@ bool gl3_filter_chain::init_alias()
 
    for (i = 0; i < common.luts.size(); i++)
    {
-      unsigned j = &common.luts[i] - common.luts.data();
+      unsigned j = (unsigned)(&common.luts[i] - common.luts.data());
       if (!slang_set_unique_map(common.texture_semantic_map,
                common.luts[i]->get_id(),
                slang_texture_semantic_map{ SLANG_TEXTURE_SEMANTIC_USER, j }))
diff --git a/gfx/drivers_shader/shader_vulkan.cpp b/gfx/drivers_shader/shader_vulkan.cpp
index 2f4923f4ee..e2fadfc2a7 100644
--- a/gfx/drivers_shader/shader_vulkan.cpp
+++ b/gfx/drivers_shader/shader_vulkan.cpp
@@ -1446,7 +1446,7 @@ bool vulkan_filter_chain::init_alias()
       if (name.empty())
          continue;
 
-      j = &passes[i] - passes.data();
+      j = (unsigned)(&passes[i] - passes.data());
 
       if (!slang_set_unique_map(
                common.texture_semantic_map, name,
@@ -1471,7 +1471,7 @@ bool vulkan_filter_chain::init_alias()
 
    for (i = 0; i < common.luts.size(); i++)
    {
-      unsigned j = &common.luts[i] - common.luts.data();
+      unsigned j = (unsigned)(&common.luts[i] - common.luts.data());
       if (!slang_set_unique_map(
                common.texture_semantic_map,
                common.luts[i]->get_id(),