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-rw-r--r--src/afl-forkserver.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/afl-forkserver.c b/src/afl-forkserver.c
index 11b359da..b3b86685 100644
--- a/src/afl-forkserver.c
+++ b/src/afl-forkserver.c
@@ -253,7 +253,7 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv) {
 #ifndef HAVE_ARC4RANDOM
     close(fsrv->dev_urandom_fd);
 #endif
-    close(fsrv->plot_file == NULL ? -1 : fileno(fsrv->plot_file));
+    if (fsrv->plot_file != NULL) fclose(fsrv->plot_file);
 
     /* This should improve performance a bit, since it stops the linker from
        doing extra work post-fork(). */