diff --git a/CMakeLists.txt b/CMakeLists.txt
index 600d7ed..fedfbf1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -157,7 +157,6 @@ foreach(lib screen dom component)
     target_compile_options(${lib} PRIVATE "-pedantic")
     target_compile_options(${lib} PRIVATE "-Werror")
     target_compile_options(${lib} PRIVATE "-Wmissing-declarations")
-    target_compile_options(${lib} PRIVATE "-Wno-sign-compare")
   endif()
 
 endforeach()
diff --git a/src/ftxui/component/menu.cpp b/src/ftxui/component/menu.cpp
index 86a1204..685c53a 100644
--- a/src/ftxui/component/menu.cpp
+++ b/src/ftxui/component/menu.cpp
@@ -109,7 +109,7 @@ bool MenuBase::OnEvent(Event event) {
 bool MenuBase::OnMouseEvent(Event event) {
   if (!CaptureMouse(event))
     return false;
-  for (int i = 0; i < boxes_.size(); ++i) {
+  for (int i = 0; i < int(boxes_.size()); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))
       continue;
 
diff --git a/src/ftxui/component/radiobox.cpp b/src/ftxui/component/radiobox.cpp
index 2be694b..b56b0d1 100644
--- a/src/ftxui/component/radiobox.cpp
+++ b/src/ftxui/component/radiobox.cpp
@@ -107,7 +107,7 @@ bool RadioboxBase::OnEvent(Event event) {
 bool RadioboxBase::OnMouseEvent(Event event) {
   if (!CaptureMouse(event))
     return false;
-  for (int i = 0; i < boxes_.size(); ++i) {
+  for (int i = 0; i < int(boxes_.size()); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))
       continue;
 
diff --git a/src/ftxui/component/toggle.cpp b/src/ftxui/component/toggle.cpp
index 75c8786..ca00069 100644
--- a/src/ftxui/component/toggle.cpp
+++ b/src/ftxui/component/toggle.cpp
@@ -79,7 +79,7 @@ bool ToggleBase::OnEvent(Event event) {
 bool ToggleBase::OnMouseEvent(Event event) {
   if (!CaptureMouse(event))
     return false;
-  for (int i = 0; i < boxes_.size(); ++i) {
+  for (int i = 0; i < int(boxes_.size()); ++i) {
     if (!boxes_[i].Contain(event.mouse().x, event.mouse().y))
       continue;