diff --git a/dune/fufem/utilities/adolcnamespaceinjections.hh b/dune/fufem/utilities/adolcnamespaceinjections.hh
index 1ee8d837310340e9b99bc4ae33066309136079a5..9e08cb1c19bf7c5b592b96081671a5320c02655d 100644
--- a/dune/fufem/utilities/adolcnamespaceinjections.hh
+++ b/dune/fufem/utilities/adolcnamespaceinjections.hh
@@ -61,6 +61,10 @@ namespace std
      return abs_hack(a);
    }
 
+   adouble fabs(adouble a) {
+     return abs_hack(a);
+   }
+
    adouble log(adouble a) {
      return log_hack(a);
    }