diff --git a/libfwsi.changes b/libfwsi.changes
index b94e777..a5bed12 100644
--- a/libfwsi.changes
+++ b/libfwsi.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Aug  8 11:37:44 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
+
+- Add forced symvers
+
 -------------------------------------------------------------------
 Sun Jan 23 09:05:09 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libfwsi.spec b/libfwsi.spec
index 164f340..eab3f2c 100644
--- a/libfwsi.spec
+++ b/libfwsi.spec
@@ -81,8 +81,11 @@ autoreconf -fi
 # OOT builds are presently broken, so we have to install
 # within each python iteration now, not in %%install.
 %{python_expand #
+# see libcdata for version-sc
+echo "V_%version { global: *; };" >v.sym
 %configure --disable-static \
-	--enable-python PYTHON_VERSION="%{$python_bin_suffix}"
+	--enable-python PYTHON_VERSION="%{$python_bin_suffix}" \
+	LDFLAGS="-Wl,--version-script=$PWD/v.sym"
 %make_build
 %make_install DESTDIR="%_builddir/rt"
 %make_build clean