diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 3adb52f3..c2685308 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,12 +1,14 @@
 {% set version = "3.9.0" %}
 # if build_num is reset to 0 (for new version), update increment for blas_minor below
-{% set build_num = 10 %}
+{% set build_num = 11 %}
 {% set version_major = version.split(".")[0] %}
 # blas_major denotes major infrastructural change to how blas is managed
 {% set blas_major = "2" %}
 # make sure we do not create colliding version strings of output "blas"
 # for builds across lapack-versions within the same blas_major
 {% set blas_minor = build_num + 100 %}
+{% set build_string_platform = target_platform | default("linux-64") %}
+{% set build_string_platform = build_string_platform.replace("-", "") %}
 
 package:
   name: blas-split
@@ -52,7 +54,7 @@ outputs:
     script: build_pkg.sh     # [unix]
     script: build_pkg.bat    # [win]
     build:
-      string: "{{ build_num }}_{{ blas_impl }}"
+      string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
       run_exports:
         - {{ pin_subpackage("libblas", max_pin="x") }}
       track_features:
@@ -90,7 +92,7 @@ outputs:
     script: build_pkg.sh     # [unix]
     script: build_pkg.bat    # [win]
     build:
-      string: "{{ build_num }}_{{ blas_impl }}"
+      string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
       run_exports:
         - {{ pin_subpackage("libcblas", max_pin="x") }}
       track_features:
@@ -121,7 +123,7 @@ outputs:
     script: build_pkg.sh     # [unix]
     script: build_pkg.bat    # [win]
     build:
-      string: "{{ build_num }}_{{ blas_impl }}"
+      string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
       run_exports:
         - {{ pin_subpackage("liblapack", max_pin="x.x") }}
       track_features:
@@ -151,7 +153,7 @@ outputs:
     script: build_pkg.sh     # [unix]
     script: build_pkg.bat    # [win]
     build:
-      string: "{{ build_num }}_{{ blas_impl }}"
+      string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
       run_exports:
         - {{ pin_subpackage("liblapacke", max_pin="x.x") }}
       track_features:
@@ -184,7 +186,7 @@ outputs:
     # uses lapack {{ version }}, not {{ blas_major }}
     script: install_blas_devel.sh   # [unix]
     build:
-      string: "{{ build_num }}_{{ blas_impl }}"
+      string: "{{ build_num }}_{{ build_string_platform }}_{{ blas_impl }}"
     requirements:
       host:
         - openblas   # [blas_impl == "openblas"]