diff --git a/tutorials/obstacle/low_res/common.txt b/tutorials/obstacle/low_res/common.txt
index 981660a4e3f370273c5d8da49557071467ed4762..0e1030d38b54aba667477d1e6a7e292400bfbc57 100644
--- a/tutorials/obstacle/low_res/common.txt
+++ b/tutorials/obstacle/low_res/common.txt
@@ -6,7 +6,7 @@ physic = acoustic
 equation = simplewave
 L = 6
 H = 2
-Hsub = 0.01
+Hsub = 0.1
 # Initial parameters
 Re(m_superc0) = 4e-7
 Im(m_superc0) = 0