diff --git a/src/raylib.nim b/src/raylib.nim
index d319b2d..ce77105 100644
--- a/src/raylib.nim
+++ b/src/raylib.nim
@@ -2650,18 +2650,18 @@ proc `[]=`*(x: var MaterialMaps, i: MaterialMapIndex, val: MaterialMap) =
   checkArrayAccess(Material(x).maps, i.int, MaxMaterialMaps)
   Material(x).maps[i.int] = val
 
-proc `texture=`*(x: var MaterialMap, val: Texture{lvalue}) {.nodestroy, inline.} =
+proc `texture=`*(x: var MaterialMap, val: Texture) {.nodestroy, inline.} =
   ## Set texture for a material map type (Diffuse, Specular...)
   ## NOTE: Previous texture should be manually unloaded
   x.texture = val
 
-template `texture=`*(x: var MaterialMap, val: Texture) =
+template `texture=`*(x: var MaterialMap, val: Texture{call}) =
   {.error: "Cannot pass a rvalue, as `x` does not take ownership of the texture.".}
 
-proc `shader=`*(x: var Material, val: Shader{lvalue}) {.nodestroy, inline.} =
+proc `shader=`*(x: var Material, val: Shader) {.nodestroy, inline.} =
   x.shader = val
 
-template `shader=`*(x: var Material, val: Shader) =
+template `shader=`*(x: var Material, val: Shader{call}) =
   {.error: "Cannot pass a rvalue, as `x` does not take ownership of the shader.".}
 
 proc texture*(x: MaterialMap): lent Texture {.inline.} =
diff --git a/tools/raylib_fields.nim b/tools/raylib_fields.nim
index ea8e91d..39fb592 100644
--- a/tools/raylib_fields.nim
+++ b/tools/raylib_fields.nim
@@ -235,18 +235,18 @@ proc `[]=`*(x: var MaterialMaps, i: MaterialMapIndex, val: MaterialMap) =
   checkArrayAccess(Material(x).maps, i.int, MaxMaterialMaps)
   Material(x).maps[i.int] = val
 
-proc `texture=`*(x: var MaterialMap, val: Texture{lvalue}) {.nodestroy, inline.} =
+proc `texture=`*(x: var MaterialMap, val: Texture) {.nodestroy, inline.} =
   ## Set texture for a material map type (Diffuse, Specular...)
   ## NOTE: Previous texture should be manually unloaded
   x.texture = val
 
-template `texture=`*(x: var MaterialMap, val: Texture) =
+template `texture=`*(x: var MaterialMap, val: Texture{call}) =
   {.error: "Cannot pass a rvalue, as `x` does not take ownership of the texture.".}
 
-proc `shader=`*(x: var Material, val: Shader{lvalue}) {.nodestroy, inline.} =
+proc `shader=`*(x: var Material, val: Shader) {.nodestroy, inline.} =
   x.shader = val
 
-template `shader=`*(x: var Material, val: Shader) =
+template `shader=`*(x: var Material, val: Shader{call}) =
   {.error: "Cannot pass a rvalue, as `x` does not take ownership of the shader.".}
 
 proc texture*(x: MaterialMap): lent Texture {.inline.} =