diff --git a/include/main.h b/include/main.h
index cb36859a4b200b209ad0fc361f2037e4717982a7..6cc2b0e40df365e33917030a91855d02d77ce51b 100644
--- a/include/main.h
+++ b/include/main.h
@@ -45,9 +45,6 @@ extern ScalarType stype;
 /*! \brief  Wavelength (for oscillatory kernels). */
 extern double lambda;
 
-/*! \brief  Radius of the leaves in the trees. */
-extern double radiusLeaf;
-
 /*! \brief  Write a VTK file of the mesh. Enabled with option --write-mesh. */
 extern int writeMesh;
 
diff --git a/src/main.c b/src/main.c
index a8a11a207eba1f5377af006ff1a58ddb0b760f66..de882d38985adf82be56b7c6d532df101d4a96bb 100644
--- a/src/main.c
+++ b/src/main.c
@@ -19,7 +19,6 @@ int simplePrec = 0;
 int complexALGO = 1;
 ScalarType stype = DOUBLE_COMPLEX;
 double lambda;
-double radiusLeaf = 0.;
 int writeMesh = 0;
 int writeMeshUNV = 0;
 enum algo testedAlgo = _undefined;