diff --git a/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.cpp b/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.cpp
index ac2bc0e078..11b925753e 100644
--- a/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.cpp
+++ b/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.cpp
@@ -410,14 +410,14 @@ std::string VertexDecompiler::BuildCode()
 		lvl -= m_instructions[i].close_scopes;
 		if (lvl < 1) lvl = 1;
 		//assert(lvl >= 1);
-		for (uint j = 0; j < m_instructions[i].put_close_scopes; ++j)
+		for (int j = 0; j < m_instructions[i].put_close_scopes; ++j)
 		{
 			--lvl;
 			if (lvl < 1) lvl = 1;
 			main_body.append(lvl, '\t') += "}\n";
 		}
 
-		for (uint j = 0; j < m_instructions[i].do_count; ++j)
+		for (int j = 0; j < m_instructions[i].do_count; ++j)
 		{
 			main_body.append(lvl, '\t') += "do\n";
 			main_body.append(lvl, '\t') += "{\n";
diff --git a/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.h b/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.h
index 86cbf2e33e..f141effdd0 100644
--- a/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.h
+++ b/rpcs3/Emu/RSX/D3D12/VertexProgramDecompiler.h
@@ -81,9 +81,8 @@ struct ParamArray
 		}
 		else
 		{
-			const u32 num = params[flag].size();
 			params[flag].emplace_back(flag, type);
-			params[flag][num].items.emplace_back(name, -1, value);
+			params[flag].back().items.emplace_back(name, -1, value);
 		}
 
 		return name;
@@ -99,9 +98,8 @@ struct ParamArray
 		}
 		else
 		{
-			const u32 num = params[flag].size();
 			params[flag].emplace_back(flag, type);
-			params[flag][num].items.emplace_back(name, location);
+			params[flag].back().items.emplace_back(name, location);
 		}
 
 		return name;
@@ -136,7 +134,7 @@ public:
 		}
 	}
 
-	int get_vector_size() const
+	size_t get_vector_size() const
 	{
 		return swizzles[swizzles.size() - 1].length();
 	}