diff --git a/travis/mtime_cache/globs.txt b/travis/mtime_cache/globs.txt
index cd0d4d2ff..09bc1e5bf 100644
--- a/travis/mtime_cache/globs.txt
+++ b/travis/mtime_cache/globs.txt
@@ -1,4 +1,4 @@
 src/**/*.{%{cpp}}
 src/**/CMakeLists.txt
 resources/3rdparty/**/*.{%{cpp}}
-resources/3rdparty/eigen-3.3-beta1/StormEigen/*
+resources/3rdparty/eigen-3.3-beta1/StormEigen/**/*