diff --git a/src/meshTools/searchableSurfaces/searchableSphere/searchableSphere.C b/src/meshTools/searchableSurfaces/searchableSphere/searchableSphere.C
index fc7cebeda1..67509335f6 100644
--- a/src/meshTools/searchableSurfaces/searchableSphere/searchableSphere.C
+++ b/src/meshTools/searchableSurfaces/searchableSphere/searchableSphere.C
@@ -160,7 +160,7 @@ Foam::searchableSphere::searchableSphere
     searchableSphere
     (
         io,
-        dict.getCompat<vector>("origin", {{"centre", 1806}}),
+        dict.getCompat<vector>("origin", {{"centre", -1806}}),
         dict.get<scalar>("radius")
     )
 {}
diff --git a/src/meshTools/sets/cellSources/sphereToCell/sphereToCell.C b/src/meshTools/sets/cellSources/sphereToCell/sphereToCell.C
index 8c47d75418..072e084dbb 100644
--- a/src/meshTools/sets/cellSources/sphereToCell/sphereToCell.C
+++ b/src/meshTools/sets/cellSources/sphereToCell/sphereToCell.C
@@ -103,7 +103,7 @@ Foam::sphereToCell::sphereToCell
     sphereToCell
     (
         mesh,
-        dict.getCompat<vector>("origin", {{"centre", 1806}}),
+        dict.getCompat<vector>("origin", {{"centre", -1806}}),
         dict.get<scalar>("radius")
     )
 {}