diff --git a/interface/lapack/laswp.c b/interface/lapack/laswp.c
index ebeb103e7..0dde33ae3 100644
--- a/interface/lapack/laswp.c
+++ b/interface/lapack/laswp.c
@@ -97,7 +97,7 @@ int NAME(blasint *N, FLOAT *a, blasint *LDA, blasint *K1, blasint *K2, blasint *
 
   blas_level1_thread(mode, n, k1, k2, dummyalpha,
 		     a, lda, NULL, 0, ipiv, incx,
-		     laswp[flag], nthreads);
+		     (int(*)())laswp[flag], nthreads);
   }
 #endif