diff --git a/libc-test/semver/netbsd.txt b/libc-test/semver/netbsd.txt
index e07a7dbf08ae6..ec6852c04c525 100644
--- a/libc-test/semver/netbsd.txt
+++ b/libc-test/semver/netbsd.txt
@@ -1241,7 +1241,6 @@ emalloc
 erand48
 erealloc
 ereallocarr
-esetfunc
 estrdup
 estrndup
 estrlcat
diff --git a/src/unix/bsd/netbsdlike/netbsd/mod.rs b/src/unix/bsd/netbsdlike/netbsd/mod.rs
index 318557daf52b8..86a894e675f32 100644
--- a/src/unix/bsd/netbsdlike/netbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/netbsd/mod.rs
@@ -2950,6 +2950,7 @@ extern "C" {
     ) -> ::uintmax_t;
     pub fn easprintf(string: *mut *mut ::c_char, fmt: *const ::c_char, ...) -> ::c_int;
     pub fn evasprintf(string: *mut *mut ::c_char, fmt: *const ::c_char, ...) -> ::c_int;
+    // FIXME: add to semver once https://github.com/JohnTitor/ctest2/issues/58 is resolved
     pub fn esetfunc(
         cb: ::Option<unsafe extern "C" fn(::c_int, *const ::c_char, ...)>,
     ) -> ::Option<unsafe extern "C" fn(::c_int, *const ::c_char, ...)>;