diff --git a/ChangeLog b/ChangeLog
index 48503c62e..eb6744984 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2003-09-11  Alexandre Duret-Lutz  <aduret@src.lip6.fr>
+
+	* src/tgba/state.hh: Include cassert.
+
 2003-08-29  Alexandre Duret-Lutz  <aduret@src.lip6.fr>
 
 	* src/tgba/state.hh (state::hash): New method.
diff --git a/src/tgba/state.hh b/src/tgba/state.hh
index 9e4e8325d..3a3d91f92 100644
--- a/src/tgba/state.hh
+++ b/src/tgba/state.hh
@@ -3,6 +3,7 @@
 
 #include <cstddef>
 #include <bdd.h>
+#include <cassert>
 
 namespace spot
 {