diff --git a/src/core/nm-core-utils.c b/src/core/nm-core-utils.c
index 410fb2bc29..175a1652e2 100644
--- a/src/core/nm-core-utils.c
+++ b/src/core/nm-core-utils.c
@@ -5167,7 +5167,7 @@ nm_utils_spawn_helper(const char *const  *args,
     fcntl(info->child_stdin, F_SETFL, fd_flags | O_NONBLOCK);
     fd_flags = fcntl(info->child_stdout, F_GETFL, 0);
     fcntl(info->child_stdout, F_SETFL, fd_flags | O_NONBLOCK);
-    fd_flags = fcntl(info->child_stderr, F_GETFD, 0);
+    fd_flags = fcntl(info->child_stderr, F_GETFL, 0);
     fcntl(info->child_stderr, F_SETFL, fd_flags | O_NONBLOCK);
 
     /* Watch process stdin */