diff --git a/UI/ImDebugger/ImDisasmView.h b/UI/ImDebugger/ImDisasmView.h
index 055e30bb97..27ea11a691 100644
--- a/UI/ImDebugger/ImDisasmView.h
+++ b/UI/ImDebugger/ImDisasmView.h
@@ -2,6 +2,7 @@
 #include <vector>
 #include <string>
 #include <set>
+#include <algorithm>
 
 #include "ext/imgui/imgui.h"
 
diff --git a/UI/ImDebugger/ImStructViewer.cpp b/UI/ImDebugger/ImStructViewer.cpp
index d277af8154..91353217c0 100644
--- a/UI/ImDebugger/ImStructViewer.cpp
+++ b/UI/ImDebugger/ImStructViewer.cpp
@@ -1,6 +1,7 @@
 #include <regex>
 #include <sstream>
 #include <unordered_map>
+#include <cctype>
 
 #include "ext/imgui/imgui.h"