diff --git a/examples/opengl2_example/imgui_impl_glfw_gl2.cpp b/examples/opengl2_example/imgui_impl_glfw_gl2.cpp
index 5cc60ec3..ebdf785e 100644
--- a/examples/opengl2_example/imgui_impl_glfw_gl2.cpp
+++ b/examples/opengl2_example/imgui_impl_glfw_gl2.cpp
@@ -233,6 +233,7 @@ static void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
 bool    ImGui_ImplGlfwGL2_Init(GLFWwindow* window, bool install_callbacks)
 {
     g_Window = window;
+    g_Time = 0;
 
     // Setup back-end capabilities flags
     ImGuiIO& io = ImGui::GetIO();
diff --git a/examples/opengl3_example/imgui_impl_glfw_gl3.cpp b/examples/opengl3_example/imgui_impl_glfw_gl3.cpp
index 163b5db3..49b41134 100644
--- a/examples/opengl3_example/imgui_impl_glfw_gl3.cpp
+++ b/examples/opengl3_example/imgui_impl_glfw_gl3.cpp
@@ -358,6 +358,7 @@ static void ImGui_ImplGlfw_InstallCallbacks(GLFWwindow* window)
 bool    ImGui_ImplGlfwGL3_Init(GLFWwindow* window, bool install_callbacks, const char* glsl_version)
 {
     g_Window = window;
+    g_Time = 0;
 
     // Store GL version string so we can refer to it later in case we recreate shaders.
     if (glsl_version == NULL)