diff --git a/src/tests/zaxis.cpp b/src/tests/zaxis.cpp
index 30c09e512..371512b7c 100644
--- a/src/tests/zaxis.cpp
+++ b/src/tests/zaxis.cpp
@@ -112,7 +112,7 @@ TEST_CASE("ZAxis") {
   SUBCASE("ZAxisDamage") {
     nccell cat = CELL_TRIVIAL_INITIALIZER;
     nccell c = CELL_CHAR_INITIALIZER('x');
-    REQUIRE(!cell_set_fg_rgb8(&c, 0xff, 0, 0));
+    REQUIRE(!nccell_set_fg_rgb8(&c, 0xff, 0, 0));
     REQUIRE(1 == ncplane_putc(n_, &c));
     CHECK(!notcurses_render(nc_));
     REQUIRE(!ncplane_cursor_move_yx(n_, 0, 0));
@@ -129,7 +129,7 @@ TEST_CASE("ZAxis") {
     };
     struct ncplane* n2 = ncplane_create(n_, &nopts);
     REQUIRE(1 == nccell_load(n2, &c, "y"));
-    REQUIRE(!cell_set_fg_rgb8(&c, 0, 0xff, 0));
+    REQUIRE(!nccell_set_fg_rgb8(&c, 0, 0xff, 0));
     REQUIRE(1 == ncplane_putc(n2, &c));
     CHECK_EQ(0, notcurses_render(nc_));
     REQUIRE(!ncplane_cursor_move_yx(n2, 0, 0));
@@ -137,7 +137,7 @@ TEST_CASE("ZAxis") {
     REQUIRE(0 == strcmp("y", nccell_extended_gcluster(n_, &c)));
     struct ncplane* n3 = ncplane_create(n_, &nopts);
     REQUIRE(1 == nccell_load(n3, &c, "z"));
-    REQUIRE(!cell_set_fg_rgb8(&c, 0, 0, 0xff));
+    REQUIRE(!nccell_set_fg_rgb8(&c, 0, 0, 0xff));
     REQUIRE(1 == ncplane_putc(n3, &c));
     CHECK(!notcurses_render(nc_));
     REQUIRE(!ncplane_cursor_move_yx(n3, 0, 0));