1 files changed, 2 insertions, 0 deletions
diff --git a/src/units.cpp b/src/units.cpp
index 6971a5445..ee0647e2e 100644
--- a/src/units.cpp
+++ b/src/units.cpp
@@ -31,6 +31,8 @@
 #include <climits>
 #include <vector>
 
+#include "debug.h"
+
 struct UnitLevel
 {
     std::string symbol;