diff --git a/examples/TSVtoSIE.php b/examples/TSVtoSIE.php
index a44e316..72b592f 100644
--- a/examples/TSVtoSIE.php
+++ b/examples/TSVtoSIE.php
@@ -189,7 +189,7 @@ public function parseTransactions(string $value, Company $company, int $skipHead
             if ($data['result_unit'] !== '') {
                 // find dimension (pre-defined)
                 $dim = $company->getDimension(Dimension::DIMENSION_COST_CENTRE);
-                if ($dim === null) {
+                if (!$dim instanceof Dimension) {
                     throw new \LogicException('Expected to find dimension: DIMENSION_COST_CENTRE');
                 }
 
@@ -210,7 +210,7 @@ public function parseTransactions(string $value, Company $company, int $skipHead
             if ($data['project'] !== '') {
                 // find dimension (pre-defined)
                 $dim = $company->getDimension(Dimension::DIMENSION_PROJECT);
-                if ($dim === null) {
+                if (!$dim instanceof Dimension) {
                     throw new \LogicException('Expected to find dimension: DIMENSION_PROJECT');
                 }
 
diff --git a/examples/simple.php b/examples/simple.php
index 8c4a824..d955789 100644
--- a/examples/simple.php
+++ b/examples/simple.php
@@ -37,8 +37,6 @@
     ->addAccount($account3741)
 ;
 
-
-
 // add a verification with two transactions
 $verification = (new Verification('591000490'))->setDate('20150105')
     ->addTransaction(