diff --git a/src/client/client_imgui.cpp b/src/client/client_imgui.cpp
index 9851409..a8b4be0 100644
--- a/src/client/client_imgui.cpp
+++ b/src/client/client_imgui.cpp
@@ -82,6 +82,8 @@ int main(int argc, char** argv)
     ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
     float fov = 45.0;
 
+    glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_LESS);
     // Required before OpenGL Calls.
     GLuint vertex_array;
     glGenVertexArrays(1, &vertex_array);
@@ -164,7 +166,7 @@ int main(int argc, char** argv)
 
        // Clear GL buffers
        glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
-       glClear(GL_COLOR_BUFFER_BIT);
+       glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
        // Render game geometries
        glfwGetWindowSize(window, &window_width, &window_height);