diff --git a/interface/lapack/laed3.c b/interface/lapack/laed3.c
index 592707f296..7d46f26de4 100644
--- a/interface/lapack/laed3.c
+++ b/interface/lapack/laed3.c
@@ -74,7 +74,7 @@ int NAME(blasint *k, blasint *n, blasint *n1, FLOAT *d,
 
 #ifdef SMP
   int nthreads = 1;
-  if (n >= 64) nthreads = num_cpu_avail(4);
+  if (nval >= 64) nthreads = num_cpu_avail(4);
 
   if (nthreads == 1) {
 #endif