diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index c011519..c4cfdae 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -12,9 +12,11 @@ source:
   sha256: {{ sha256 }}
 
 build:
-  number: 3
+  number: 4
   skip: true  # [win and vc<14]
   skip: true  # [cuda_compiler_version != "None" and win]
+  string: cuda{{ cuda_compiler_version | replace('.', '') }}_h{{ PKG_HASH }}_{{ PKG_BUILDNUM }}  # [cuda_compiler_version != "None"]
+  string: cpu_h{{ PKG_HASH }}_{{ PKG_BUILDNUM }}                                                 # [cuda_compiler_version == "None"]
   run_exports:
     - {{ pin_subpackage(name, max_pin='x.x.x') }}