diff --git a/bob/io/base/include/bob.io.base/blitz_array.h b/bob/io/base/include/bob.io.base/blitz_array.h
index 4625959840300a82bfe6e934bf952e1c8ed32910..c592b7f3844aadbbc755a30a16de9e0ef4d5b05f 100644
--- a/bob/io/base/include/bob.io.base/blitz_array.h
+++ b/bob/io/base/include/bob.io.base/blitz_array.h
@@ -172,7 +172,7 @@ namespace bob { namespace io { namespace base { namespace array {
        * specify. We will do this by copying the data you gave.
        */
       template <typename T, int N> void set(const blitz::Array<T,N>& data) {
-        set(boost::make_shared<blitz::Array<T,N> >(ccopy(data)));
+        set(boost::make_shared<blitz::Array<T,N> >(bob::core::array::ccopy(data)));
       }
 
       /**