diff --git a/src/freedombone-app-matrix b/src/freedombone-app-matrix
index 48421870..5b1a8812 100755
--- a/src/freedombone-app-matrix
+++ b/src/freedombone-app-matrix
@@ -321,7 +321,7 @@ function upgrade_matrix {
     cd /etc/sydent
     pip install --upgrade --process-dependency-links .
 
-    sed -i 's|ssl.PROTOCOL_SSLv23|ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3|g' /usr/local/bin/register_new_matrix_user
+    sed -i 's/ssl.PROTOCOL_SSLv23/ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3/g' /usr/local/bin/register_new_matrix_user
 
     chown -R matrix:matrix /etc/matrix
     chown -R matrix:matrix /etc/sydent
@@ -614,7 +614,7 @@ function install_home_server {
     chown -R matrix:matrix /etc/matrix
     chown -R matrix:matrix $MATRIX_DATA_DIR
 
-    sed -i 's|ssl.PROTOCOL_SSLv23|ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3|g' /usr/local/bin/register_new_matrix_user
+    sed -i 's/ssl.PROTOCOL_SSLv23/ssl.OP_ALL | ssl.OP_NO_SSLv2 | ssl.OP_NO_SSLv3/g' /usr/local/bin/register_new_matrix_user
 
     echo '[Unit]' > /etc/systemd/system/matrix.service
     echo 'Description=Synapse Matrix homeserver' >> /etc/systemd/system/matrix.service