diff --git a/src/native/libs/System.Native/pal_console.c b/src/native/libs/System.Native/pal_console.c
index b51e16c0bbc271..f06497c2171b67 100644
--- a/src/native/libs/System.Native/pal_console.c
+++ b/src/native/libs/System.Native/pal_console.c
@@ -42,7 +42,13 @@ int32_t SystemNative_GetWindowSize(intptr_t fd, WinSize* windowSize)
 
 int32_t SystemNative_IsATty(intptr_t fd)
 {
+#if defined(TARGET_MACCATALYST) || defined(TARGET_IOS) || defined(TARGET_TVOS)
+    // there is no terminal on these platforms
+    (void)fd;
+    return 0;
+#else
     return isatty(ToFileDescriptor(fd));
+#endif
 }
 
 static char* g_keypadXmit = NULL; // string used to enable application mode, from terminfo