diff --git a/memory-constraints.changes b/memory-constraints.changes
index 130245b..9df30c7 100644
--- a/memory-constraints.changes
+++ b/memory-constraints.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jan  9 11:29:51 UTC 2025 - Guillaume GARDET <guillaume.gardet@opensuse.org>
+
+- Also set _smp_build_ncpus to fix usage with meson macro and
+  maybe others
+
 -------------------------------------------------------------------
 Tue Jun 29 14:50:50 UTC 2021 - Andreas Schneider <asn@cryptomilk.org>
 
diff --git a/memory-constraints.macros b/memory-constraints.macros
index e06c46a..54385c7 100644
--- a/memory-constraints.macros
+++ b/memory-constraints.macros
@@ -24,4 +24,5 @@
     fi \
     %global jobs $([[ -n $_threads ]] && echo $_threads || echo "`/usr/bin/getconf _NPROCESSORS_ONLN`") \
     %global _smp_mflags $([[ -n $_threads ]] && echo "-j$_threads" || echo "-j`/usr/bin/getconf _NPROCESSORS_ONLN`") \
+    %global _smp_build_ncpus $([[ -n $_threads ]] && echo "$_threads" || echo "`/usr/bin/getconf _NPROCESSORS_ONLN`") \
     %{nil}