diff --git a/src/init.cpp b/src/init.cpp
index 174c5df..13815f6 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -11,7 +11,7 @@ using namespace Rcpp;
 extern "C"  {
 #endif
 
-SEXP var_context(SEXP file_path);
+SEXP var_context_(SEXP file_path);
 SEXP call_stan_(SEXP options_vector, SEXP ll_fun, SEXP grad_fun);
 SEXP parse_csv_(SEXP filename_);
 SEXP constrain_pars_(SEXP pars_, SEXP lower_, SEXP upper_);
@@ -25,7 +25,7 @@ SEXP unconstrain_pars_(SEXP pars_, SEXP lower_, SEXP upper_);
 #define CALLDEF(name, n)  {#name, (DL_FUNC) &name, n}
 
 static const R_CallMethodDef CallEntries[] = {
-  CALLDEF(var_context, 1),
+  CALLDEF(var_context_, 1),
   CALLDEF(call_stan_, 3),
   CALLDEF(parse_csv_, 1),
   CALLDEF(constrain_pars_, 3),