diff --git a/build.rs b/build.rs
index f4a5e1f33..429c21de6 100644
--- a/build.rs
+++ b/build.rs
@@ -61,7 +61,7 @@ fn main() {
 
     for lib in curses_libraries {
         if target.has_symbol("_nc_cur_term", &lib) {
-            rsconf::enable_cfg("_nc_cur_term");
+            rsconf::enable_cfg("have_nc_cur_term");
             if target.has_symbol("cur_term", &lib) {
                 rsconf::warn!("curses provides both cur_term and _nc_cur_term");
             }
diff --git a/src/curses.rs b/src/curses.rs
index 7bbc13ec9..bd86ff24c 100644
--- a/src/curses.rs
+++ b/src/curses.rs
@@ -65,7 +65,7 @@ mod sys {
         #[cfg(not(have_nc_cur_term))]
         pub static mut cur_term: *const core::ffi::c_void;
         #[cfg(have_nc_cur_term)]
-        pub fn have_nc_cur_term() -> *const core::ffi::c_void;
+        pub fn _nc_cur_term() -> *const core::ffi::c_void;
 
         /// setupterm(3) is a low-level call to begin doing any sort of `term.h`/`curses.h` work.
         /// It's called internally by ncurses's `initscr()` and `newterm()`, but the C++ code called
@@ -105,7 +105,7 @@ pub fn tgetstr(
 fn get_curterm() -> *const core::ffi::c_void {
     #[cfg(have_nc_cur_term)]
     unsafe {
-        sys::have_nc_cur_term()
+        sys::_nc_cur_term()
     }
     #[cfg(not(have_nc_cur_term))]
     unsafe {