diff --git a/basis/alien/fortran/tags.txt b/basis/alien/fortran/tags.txt
index 2a9b5def7a..58465edeb5 100644
--- a/basis/alien/fortran/tags.txt
+++ b/basis/alien/fortran/tags.txt
@@ -1,2 +1,3 @@
 fortran
 ffi
+unportable
diff --git a/basis/math/blas/ffi/tags.txt b/basis/math/blas/ffi/tags.txt
index f468a9989d..a4a4ea88ab 100644
--- a/basis/math/blas/ffi/tags.txt
+++ b/basis/math/blas/ffi/tags.txt
@@ -1,3 +1,4 @@
 math
 bindings
 fortran
+unportable
diff --git a/basis/math/blas/matrices/tags.txt b/basis/math/blas/matrices/tags.txt
index 241ec1ecda..5118958180 100644
--- a/basis/math/blas/matrices/tags.txt
+++ b/basis/math/blas/matrices/tags.txt
@@ -1,2 +1,3 @@
 math
 bindings
+unportable
diff --git a/basis/math/blas/vectors/tags.txt b/basis/math/blas/vectors/tags.txt
index ede10ab61b..5118958180 100644
--- a/basis/math/blas/vectors/tags.txt
+++ b/basis/math/blas/vectors/tags.txt
@@ -1 +1,3 @@
 math
+bindings
+unportable