diff --git a/Examples/test-suite/unions.i b/Examples/test-suite/unions.i
index edc263874..789b9608d 100644
--- a/Examples/test-suite/unions.i
+++ b/Examples/test-suite/unions.i
@@ -33,8 +33,6 @@ typedef union {
 
 /* This union checks the parser and will be used in a runtime test */
 
-#if not defined(SWIGSCILAB)
-
 %inline %{
 
 typedef struct {
@@ -44,23 +42,12 @@ typedef struct {
     SmallStruct small;
   } uni;
   int           number;
-} EmbeddedUnionTest;
-
-%}
-
+}
+#if !defined(SWIGSCILAB)
+EmbeddedUnionTest;
 #else
-
-%inline %{
-
-typedef struct {
-  union
-  {
-    BigStruct   big;
-    SmallStruct small;
-  } uni;
-  int           number;
-} EmbedUnionTst;
+EmbedUnionTst;
+#endif
 
 %}
 
-#endif
diff --git a/Source/Modules/scilab.cxx b/Source/Modules/scilab.cxx
index 18bfa15d3..6d9930431 100644
--- a/Source/Modules/scilab.cxx
+++ b/Source/Modules/scilab.cxx
@@ -195,6 +195,9 @@ public:
     /* Output module initialization code */
     Swig_banner(beginSection);
 
+    Printf(runtimeSection, "\n#define SWIGSCILAB\n");
+    Printf(runtimeSection, "\n");
+
     // Gateway header source merged with wrapper source in nobuilder mode
     if (!generateBuilder)
       startGatewayHeader(gatewayLibraryName);