diff --git a/.travis.yml b/.travis.yml
index e76cae1..f2c4647 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,16 @@ language: r
 sudo: false
 cache: packages
 r:
-  - oldrel
-  - release
-  - devel
+ - 3.0.3
+ - oldrel
+ - release
+ - devel
+
+before_install:
+  - if [[ "$TRAVIS_R_VERSION_STRING" = '3.0.3' ]]; then git clone https://github.com/hadley/devtools ~/devtools && pushd ~/devtools && git fetch origin pull/1388/head:3.0.3 && git checkout 3.0.3 && R CMD build . && R CMD INSTALL devtools*tar.gz && popd;fi
+
+install:
+  - R -e 'devtools::install_deps(dep = T)'
 
 after_success:
   - Rscript -e 'covr::codecov(line_exclusions = c("R/lazy.R", "R/lazy-as.R", "R/lazy-dots.R", "R/lazy-names.R", "R/lazy-call.R", "R/lazy-eval.R", "R/lazy-interp.R", "src/lazy.c"))'
diff --git a/DESCRIPTION b/DESCRIPTION
index 8f9680a..2951390 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,5 +1,5 @@
 Package: lazyeval
-Version: 0.2.0.9000
+Version: 0.2.0.9001
 Title: Lazy (Non-Standard) Evaluation
 Description: An alternative approach to non-standard evaluation using
     formulas. Provides a full implementation of LISP style 'quasiquotation',
@@ -11,7 +11,7 @@ Authors@R: c(
 License: GPL-3
 LazyData: true
 Depends:
-    R (>= 3.1.0)
+    R (>= 3.0.0)
 Suggests:
     knitr,
     rmarkdown (>= 0.2.65),
diff --git a/src/name.c b/src/name.c
index 0056de8..ad46d18 100644
--- a/src/name.c
+++ b/src/name.c
@@ -27,7 +27,7 @@ SEXP lhs_name(SEXP x) {
     Rf_errorcall(R_NilValue, "`x` must be a list (not a %s)", Rf_type2char(TYPEOF(x)));
 
   int n = Rf_length(x);
-  SEXP x2 = PROTECT(Rf_shallow_duplicate(x));
+  SEXP x2 = PROTECT(Rf_duplicate(x));
 
   SEXP names = Rf_getAttrib(x2, R_NamesSymbol);
   if (names == R_NilValue) {