diff --git a/src/gamelog.cpp b/src/gamelog.cpp
--- a/src/gamelog.cpp
+++ b/src/gamelog.cpp
@@ -332,6 +332,7 @@ void GamelogRevision()
 	LoggedChange *lc = GamelogChange(GLCT_REVISION);
 	if (lc == NULL) return;
 
+	memset(lc->revision.text, 0, sizeof(lc->revision.text));
 	strecpy(lc->revision.text, _openttd_revision, lastof(lc->revision.text));
 	lc->revision.slver = SAVEGAME_VERSION;
 	lc->revision.modified = _openttd_revision_modified;