diff --git a/Examples/test-suite/scilab/primitive_types_runme.sci b/Examples/test-suite/scilab/primitive_types_runme.sci
index 15227e769..3709df7f4 100644
--- a/Examples/test-suite/scilab/primitive_types_runme.sci
+++ b/Examples/test-suite/scilab/primitive_types_runme.sci
@@ -23,16 +23,13 @@ if (val_long(int32(42)) <> 42) then swigtesterror(); end
 if (val_ulong(uint32(42)) <> uint32(42)) then swigtesterror(); end
 
 if (val_bool(%t) <> %t) then swigtesterror(); end
-//if (val_bool(1) <> %t) then swigtesterror(); end
 
+// longlong is not supported in Scilab 5.x
 //if (val_llong(42) <> 42) then swigtesterror(); end
 //if (val_llong(int64(42)) <> 42) then swigtesterror(); end
 //if (val_ullong(uint64(42)) <> uint64(42)) then swigtesterror(); end
 
 // Check passing by reference
-//if (ref_float(42) <> 42) then swigtesterror(); end
-//if (ref_double(42) <> 42) then swigtesterror(); end
-
 if (ref_char('a') <> 'a') then swigtesterror(); end
 if (ref_schar(42) <> 42) then swigtesterror(); end
 if (ref_schar(int8(42)) <> 42) then swigtesterror(); end
@@ -51,11 +48,10 @@ if (ref_long(int32(42)) <> 42) then swigtesterror(); end
 if (ref_ulong(uint32(42)) <> uint32(42)) then swigtesterror(); end
 
 if (ref_bool(%t) <> %t) then swigtesterror(); end
-//if (ref_bool(1) <> %t) then swigtesterror(); end
 
+// long long is not supported in Scilab 5.x
 //if (ref_llong(42) <> 42) then swigtesterror(); end
 //if (ref_llong(int64(42)) <> 42) then swigtesterror(); end
-//if (ref_ullong(42) <> 42) then swigtesterror(); end
 //if (ref_ullong(uint64(42)) <> uint64(42)) then swigtesterror(); end