diff --git a/src/ui/CSimpleEditBox.cpp b/src/ui/CSimpleEditBox.cpp
index 6945ce9..981d315 100644
--- a/src/ui/CSimpleEditBox.cpp
+++ b/src/ui/CSimpleEditBox.cpp
@@ -79,6 +79,13 @@ void CSimpleEditBox::SetKeyboardFocus(CSimpleEditBox* editBox) {
     editBox->m_dirtyFlags |= 0x4;
 }
 
+void CSimpleEditBox::ClearKeyboardFocus(CSimpleEditBox* editBox, bool) {
+    if (CSimpleEditBox::s_currentFocus == editBox) {
+        CSimpleEditBox::s_currentFocus = nullptr;
+        // TODO: CSimpleEditBox::OnFocusChange
+    }
+}
+
 CSimpleEditBox::CSimpleEditBox(CSimpleFrame* parent) : CSimpleFrame(parent) {
     this->m_autoFocus = 1;
     this->m_multiline = 0;
diff --git a/src/ui/CSimpleEditBox.hpp b/src/ui/CSimpleEditBox.hpp
index 5fb7e26..f7dbb3b 100644
--- a/src/ui/CSimpleEditBox.hpp
+++ b/src/ui/CSimpleEditBox.hpp
@@ -19,6 +19,7 @@ class CSimpleEditBox : public CSimpleFrame, CSimpleFontedFrame {
         static int32_t GetObjectType();
         static void RegisterScriptMethods(lua_State* L);
         static void SetKeyboardFocus(CSimpleEditBox* editBox);
+        static void ClearKeyboardFocus(CSimpleEditBox* editBox, bool);
 
         // Member variables
         int32_t m_autoFocus : 1;
diff --git a/src/ui/CSimpleEditBoxScript.cpp b/src/ui/CSimpleEditBoxScript.cpp
index 7b98f94..de2438a 100644
--- a/src/ui/CSimpleEditBoxScript.cpp
+++ b/src/ui/CSimpleEditBoxScript.cpp
@@ -176,11 +176,19 @@ int32_t CSimpleEditBox_GetTextInsets(lua_State* L) {
 }
 
 int32_t CSimpleEditBox_SetFocus(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    int32_t type = CSimpleEditBox::GetObjectType();
+    auto object = static_cast<CSimpleEditBox*>(FrameScript_GetObjectThis(L, type));
+
+    CSimpleEditBox::SetKeyboardFocus(object);
+    return 0;
 }
 
 int32_t CSimpleEditBox_ClearFocus(lua_State* L) {
-    WHOA_UNIMPLEMENTED(0);
+    int32_t type = CSimpleEditBox::GetObjectType();
+    auto object = static_cast<CSimpleEditBox*>(FrameScript_GetObjectThis(L, type));
+
+    CSimpleEditBox::ClearKeyboardFocus(object, true);
+    return 0;
 }
 
 int32_t CSimpleEditBox_HasFocus(lua_State* L) {