diff --git a/src/libcharon/tnc/tncif.h b/src/libcharon/tnc/tncif.h
old mode 100755
new mode 100644
diff --git a/src/libcharon/tnc/tncifimc.h b/src/libcharon/tnc/tncifimc.h
old mode 100755
new mode 100644
diff --git a/src/libcharon/tnc/tncifimv.h b/src/libcharon/tnc/tncifimv.h
old mode 100755
new mode 100644