diff --git a/imgui.cpp b/imgui.cpp
index 57498b8b1..f6d3ccf2a 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -14280,7 +14280,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
 #ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
             struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
 #else
-            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key >= 0 && key < 512 && GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
             //Text("Legacy raw:");      for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key++) { if (io.KeysDown[key]) { SameLine(); Text("\"%s\" %d", GetKeyName(key), key); } }
 #endif
             Text("Keys down:");         for (ImGuiKey key = ImGuiKey_KeysData_OFFSET; key < ImGuiKey_COUNT; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !IsKeyDown(key)) continue;     SameLine(); Text(IsNamedKey(key) ? "\"%s\"" : "\"%s\" %d", GetKeyName(key), key); SameLine(); Text("(%.02f)", GetKeyData(key)->DownDuration); }
diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index 763e0a9e9..94972dd1a 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp
@@ -6098,7 +6098,7 @@ static void ShowDemoWindowInputs()
             struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
             ImGuiKey start_key = ImGuiKey_NamedKey_BEGIN;
 #else
-            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && ImGui::GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key >= 0 && key < 512 && ImGui::GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
             ImGuiKey start_key = (ImGuiKey)0;
 #endif
             ImGui::Text("Keys down:");         for (ImGuiKey key = start_key; key < ImGuiKey_NamedKey_END; key = (ImGuiKey)(key + 1)) { if (funcs::IsLegacyNativeDupe(key) || !ImGui::IsKeyDown(key)) continue; ImGui::SameLine(); ImGui::Text((key < ImGuiKey_NamedKey_BEGIN) ? "\"%s\"" : "\"%s\" %d", ImGui::GetKeyName(key), key); }
diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index ac5455b05..8d486d48b 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp
@@ -3925,8 +3925,8 @@ static bool InputTextFilterCharacter(ImGuiContext* ctx, unsigned int* p_char, Im
     if (c < 0x20)
     {
         bool pass = false;
-        pass |= (c == '\n' && (flags & ImGuiInputTextFlags_Multiline)); // Note that an Enter KEY will emit \r and be ignored (we poll for KEY in InputText() code)
-        pass |= (c == '\t' && (flags & ImGuiInputTextFlags_AllowTabInput));
+        pass |= (c == '\n') && (flags & ImGuiInputTextFlags_Multiline) != 0; // Note that an Enter KEY will emit \r and be ignored (we poll for KEY in InputText() code)
+        pass |= (c == '\t') && (flags & ImGuiInputTextFlags_AllowTabInput) != 0;
         if (!pass)
             return false;
         apply_named_filters = false; // Override named filters below so newline and tabs can still be inserted.