diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am
index b49e286..1f9c6b7 100644
--- a/mingw-w64-crt/Makefile.am
+++ b/mingw-w64-crt/Makefile.am
@@ -2491,6 +2491,7 @@
 		%/libapi-ms-win-core-processthreads-l1-1-4.a \
 		%/libapi-ms-win-core-processtopology-l1-1-0.a \
 		%/libapi-ms-win-core-processtopology-obsolete-l1-1-0.a \
+		%/libapi-ms-win-core-processtopology-obsolete-l1-1-1.a \
 		%/libapi-ms-win-core-profile-l1-1-0.a \
 		%/libapi-ms-win-core-psapi-ansi-l1-1-0.a \
 		%/libapi-ms-win-core-psapi-l1-1-0.a \
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-1.def b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-1.def
new file mode 100644
index 0000000..191d165
--- /dev/null
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-processtopology-obsolete-l1-1-1.def
@@ -0,0 +1,5 @@
+LIBRARY api-ms-win-core-processtopology-obsolete-l1-1-1
+
+EXPORTS
+
+GetActiveProcessorGroupCount
diff --git a/mingw-w64-crt/lib-common/onecore_apiset.mri b/mingw-w64-crt/lib-common/onecore_apiset.mri
index 404d930..faa50cb 100644
--- a/mingw-w64-crt/lib-common/onecore_apiset.mri
+++ b/mingw-w64-crt/lib-common/onecore_apiset.mri
@@ -113,7 +113,7 @@
 ADDLIB libapi-ms-win-core-processthreads-l1-1-4.a
 ADDLIB libapi-ms-win-core-processtopology-l1-1-0.a
 ADDLIB libapi-ms-win-core-processtopology-obsolete-l1-1-0.a
-; FIXME libapi-ms-win-core-processtopology-obsolete-l1-1-1.a
+ADDLIB libapi-ms-win-core-processtopology-obsolete-l1-1-1.a
 ADDLIB libapi-ms-win-core-profile-l1-1-0.a
 ADDLIB libapi-ms-win-core-psapi-ansi-l1-1-0.a
 ADDLIB libapi-ms-win-core-psapi-l1-1-0.a
diff --git a/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-1.def b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-1.def
new file mode 100644
index 0000000..876c5e4
--- /dev/null
+++ b/mingw-w64-crt/lib32/api-ms-win-core-processtopology-obsolete-l1-1-1.def
@@ -0,0 +1,5 @@
+LIBRARY api-ms-win-core-processtopology-obsolete-l1-1-1
+
+EXPORTS
+
+GetActiveProcessorGroupCount@0