diff --git a/src/AppleSpellChecker.cpp b/src/AppleSpellChecker.cpp
index 189ada71cf..6020de7f27 100644
--- a/src/AppleSpellChecker.cpp
+++ b/src/AppleSpellChecker.cpp
@@ -13,7 +13,6 @@
 #include "AppleSpellChecker.h"
 #include "WordLangTuple.h"
 
-#include "support/lassert.h"
 #include "support/debug.h"
 #include "support/docstring_list.h"
 #include "support/AppleSpeller.h"