diff --git a/src/modules/graphics/metal/Shader.mm b/src/modules/graphics/metal/Shader.mm
index b188c336e..1f9c185ed 100644
--- a/src/modules/graphics/metal/Shader.mm
+++ b/src/modules/graphics/metal/Shader.mm
@@ -298,7 +298,7 @@ void Shader::buildLocalUniforms(const spirv_cross::CompilerMSL &msl, const spirv
 				}
 				else
 				{
-					std::string structname = name = ".";
+					std::string structname = name + ".";
 					buildLocalUniforms(msl, membertype, offset, structname);
 				}
 				continue;
diff --git a/src/modules/graphics/vulkan/Shader.cpp b/src/modules/graphics/vulkan/Shader.cpp
index ee5346771..f2cfa3e3c 100644
--- a/src/modules/graphics/vulkan/Shader.cpp
+++ b/src/modules/graphics/vulkan/Shader.cpp
@@ -427,7 +427,7 @@ void Shader::buildLocalUniforms(spirv_cross::Compiler &comp, const spirv_cross::
 			}
 			else
 			{
-				std::string structname = name = ".";
+				std::string structname = name + ".";
 				buildLocalUniforms(comp, memberType, offset, structname);
 			}
 			continue;