diff --git a/Examples/test-suite/li_boost_shared_ptr.i b/Examples/test-suite/li_boost_shared_ptr.i
index cccef1d57..25ca6039b 100644
--- a/Examples/test-suite/li_boost_shared_ptr.i
+++ b/Examples/test-suite/li_boost_shared_ptr.i
@@ -344,7 +344,7 @@ template <class T1, class T2> struct Base {
 };
 %}
 
-#if not defined(SWIGSCILAB)
+#if !defined(SWIGSCILAB)
 %template(BaseIntDouble) Base<int, double>;
 #else
 %template(BaseIDbl) Base<int, double>;
diff --git a/Examples/test-suite/li_std_combinations.i b/Examples/test-suite/li_std_combinations.i
index cc6ca7655..e28950835 100644
--- a/Examples/test-suite/li_std_combinations.i
+++ b/Examples/test-suite/li_std_combinations.i
@@ -11,7 +11,7 @@
 %template(VectorPairIntString) std::vector< std::pair<int, std::string> >;
 %template(VectorVectorString) std::vector< std::vector<std::string> >;
 
-#if not defined(SWIGSCILAB)
+#if !defined(SWIGSCILAB)
 %template(PairIntVectorString) std::pair< int, std::vector<std::string> >;
 %template(PairIntPairIntString) std::pair< int, std::pair<int, std::string> >;
 #else
diff --git a/Examples/test-suite/nested.i b/Examples/test-suite/nested.i
index 4e960347f..1d4710128 100644
--- a/Examples/test-suite/nested.i
+++ b/Examples/test-suite/nested.i
@@ -32,7 +32,7 @@ struct OuterStructNamed {
 %}
 
 
-#if not defined(SWIGSCILAB)
+#if !defined(SWIGSCILAB)
 
 %inline %{
 
diff --git a/Examples/test-suite/template_nested.i b/Examples/test-suite/template_nested.i
index 76d7edd98..67668fb1a 100644
--- a/Examples/test-suite/template_nested.i
+++ b/Examples/test-suite/template_nested.i
@@ -115,7 +115,7 @@ namespace ns {
 }
 %}
 
-#if not defined(SWIGSCILAB)
+#if !defined(SWIGSCILAB)
 %extend ns::OuterClass {
   %template(T_OuterClassInner2Double) Inner2<double>;
 }