diff --git a/bin/ssh-init-pkcs11 b/bin/ssh-init-pkcs11
index 605d939..e5b88cb 100755
--- a/bin/ssh-init-pkcs11
+++ b/bin/ssh-init-pkcs11
@@ -2,7 +2,9 @@
 
 set -eu
 set -x
-[ -z "${P11M+x}" ] && P11M="$(dnf repoquery --installed -l p11-kit | grep \/p11-kit-proxy.so\$ | head -1)"
+which dnf >/dev/null 2>&1 [ -z "${P11M+x}" ] && P11M="$(dnf repoquery --installed -l p11-kit | grep \/p11-kit-proxy.so\$ | head -1)"
+which dpkg >/dev/null 2>&1 && [ -z "${P11M+x}" ] && P11M="$(dpkg -L p11-kit-modules|grep \/p11-kit-proxy.so\$ | head -1)"
+
 
 echo SSH_AGENT_PID before: $SSH_AGENT_PID