diff --git a/lapack-netlib/SRC/stgex2.f b/lapack-netlib/SRC/stgex2.f
index d61da2327a..885739ab51 100644
--- a/lapack-netlib/SRC/stgex2.f
+++ b/lapack-netlib/SRC/stgex2.f
@@ -255,7 +255,7 @@ SUBROUTINE STGEX2( WANTQ, WANTZ, N, A, LDA, B, LDB, Q, LDQ, Z,
      $                   THRESHA, THRESHB
 *     ..
 *     .. Local Arrays ..
-      INTEGER            IWORK( LDST )
+      INTEGER            IWORK( LDST + 2 )
       REAL               AI( 2 ), AR( 2 ), BE( 2 ), IR( LDST, LDST ),
      $                   IRCOP( LDST, LDST ), LI( LDST, LDST ),
      $                   LICOP( LDST, LDST ), S( LDST, LDST ),