diff --git a/library/ecp.c b/library/ecp.c
index 92a188b665..4b20b7a452 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -1450,7 +1450,7 @@ static int ecp_mul_comb( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
 
 cleanup:
 
-    if( T != NULL && ! p_eq_g )
+    if( T != NULL && T != grp->T )
     {
         for( i = 0; i < pre_len; i++ )
             mbedtls_ecp_point_free( &T[i] );