diff --git a/openblas.changes b/openblas.changes
index 3707a34..0b6f232 100644
--- a/openblas.changes
+++ b/openblas.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Oct 27 11:26:28 UTC 2023 - Stefan Brüns <stefan.bruens@rwth-aachen.de>
+
+- Propagate the correct CPU count to the pkgconfig file, see
+  gh#OpenMathLib/OpenBLAS#4275.
+
 -------------------------------------------------------------------
 Tue Oct 17 02:18:53 UTC 2023 - Bernhard Wiedemann <bwiedemann@suse.com>
 
diff --git a/openblas.spec b/openblas.spec
index bc60073..23e92c3 100644
--- a/openblas.spec
+++ b/openblas.spec
@@ -444,8 +444,11 @@ make MAKE_NB_JOBS=$jobs %{?openblas_target} %{?build_flags} \
 %hpc_setup_compiler
 %endif
 
-# Install serial library and headers
+# Install library and headers
+# Pass NUM_THREADS again, as it is not propagated from the build step
+# https://github.com/OpenMathLib/OpenBLAS/issues/4275
 %make_install  %{?build_flags} \
+    NUM_THREADS=%{num_threads} \
     OPENBLAS_LIBRARY_DIR=%{p_libdir} \
     OPENBLAS_INCLUDE_DIR=%{p_includedir} \
     OPENBLAS_CMAKE_DIR=%{p_cmakedir} \
@@ -457,7 +460,6 @@ make MAKE_NB_JOBS=$jobs %{?openblas_target} %{?build_flags} \
  sed -i '/#define OPENBLAS_NEEDBUNDERSCORE/,/#define OPENBLAS_VERSION/{//!d}' \
     %{buildroot}%{p_includedir}/openblas_config.h
 %endif
-sed -i 's/MAX_THREADS=[0-9]*/MAX_THREADS=4/' %{buildroot}%{_libdir}/*/pkgconfig/openblas.pc ||:
 
 %if %{without hpc}