diff --git a/matscipy/cli/fracture_mechanics/quasistatic_crack.py b/matscipy/cli/fracture_mechanics/quasistatic_crack.py
index 965918b5..239ba996 100644
--- a/matscipy/cli/fracture_mechanics/quasistatic_crack.py
+++ b/matscipy/cli/fracture_mechanics/quasistatic_crack.py
@@ -46,14 +46,13 @@
 import ase.io
 import ase.constraints
 import ase.optimize
+from ase.optimize.precon import PreconLBFGS
 
 from matscipy import parameter
 from matscipy.logger import screen
 
-from setup_crack import setup_crack
-from ase.optimize.precon import PreconLBFGS
+from .setup_crack import setup_crack
 
-###
 
 def main():
     # Atom types used for outputting the crack tip position.
diff --git a/matscipy/cli/meson.build b/matscipy/cli/meson.build
index ee47a31f..96439d93 100644
--- a/matscipy/cli/meson.build
+++ b/matscipy/cli/meson.build
@@ -14,4 +14,5 @@ python.install_sources(
 subdir('calculators')
 subdir('diffusion')
 subdir('electrochemistry')
+subdir('fracture_mechanics')
 subdir('glasses')
diff --git a/matscipy/meson.build b/matscipy/meson.build
index b2d16473..db67658a 100644
--- a/matscipy/meson.build
+++ b/matscipy/meson.build
@@ -52,5 +52,3 @@ subdir('cli')
 subdir('electrochemistry')
 subdir('fracture_mechanics')
 subdir('io')
-subdir('tool')
-