diff --git a/interface/zimatcopy.c b/interface/zimatcopy.c
index 0bb0e4eed..6e9c6d263 100644
--- a/interface/zimatcopy.c
+++ b/interface/zimatcopy.c
@@ -238,7 +238,7 @@ void CNAME( enum CBLAS_ORDER CORDER, enum CBLAS_TRANSPOSE CTRANS, blasint crows,
 		if ( trans == BlasTrans )
 		{
 			OMATCOPY_K_RT(*rows, *cols, alpha[0], alpha[1], a, *lda, b, *ldb );
-	  		OMATCOPY_K_RN(*rows, *cols, (FLOAT) 1.0, (FLOAT) 0.0 , b, *ldb, a, *ldb );
+	  		OMATCOPY_K_RN(*cols, *rows, (FLOAT) 1.0, (FLOAT) 0.0 , b, *ldb, a, *ldb );
 			free(b);
 			return;
 		}