diff --git a/kernel/syscall.c b/kernel/syscall.c
index cb4bd60f..b1c28740 100644
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@@ -2844,7 +2844,8 @@ unsigned long do_fork(int clone_flags, unsigned long newsp,
 		ihk_rwspinlock_read_unlock_noirq(&old->vm->memory_range_lock);
 
 		if (range && range->memobj && range->memobj->path) {
-			if (!strstr(range->memobj->path, "omp.so")) {
+			if (!strstr(range->memobj->path, "omp.so") &&
+					!strstr(range->memobj->path, "libfj90")) {
 				helper_thread = 1;
 			}
 			dkprintf("clone(): %s thread from %s\n",