diff --git a/library/camellia.c b/library/camellia.c
index 826d883..72d902b 100644
--- a/library/camellia.c
+++ b/library/camellia.c
@@ -456,7 +456,7 @@
     camellia_init( &cty );
 
     /* Also checks keysize */
-    if( ( ret = camellia_setkey_enc( &cty, key, keysize ) ) )
+    if( ( ret = camellia_setkey_enc( &cty, key, keysize ) ) != 0 )
         goto exit;
 
     ctx->nr = cty.nr;