diff --git a/bashrc b/bashrc
index 2de78c87..90da3356 100644
--- a/bashrc
+++ b/bashrc
@@ -469,7 +469,8 @@ alias lpip="pip install --install-option=--prefix=$HOME/.local"
 alias lpip3="pip3 install --install-option=--prefix=$HOME/.local"
 
 # FINEID
-alias ssh-add-sc="ssh-add -s /usr/lib/opensc-pkcs11.so"
+pkcs11so=`locate opensc-pkcs11.so`
+alias ssh-add-sc="ssh-add -s $opensc-pkcs11.so"
 alias ssh-add-sc-pub="ssh-add -L"
 
 # Allow custom aliases to be put in .aliases or .bash_aliases .
diff --git a/zshrc b/zshrc
index 09c0a352..a648334d 100644
--- a/zshrc
+++ b/zshrc
@@ -442,7 +442,8 @@ alias lpip="pip install --install-option=--prefix=$HOME/.local"
 alias lpip3="pip3 install --install-option=--prefix=$HOME/.local"
 
 # FINEID
-alias ssh-add-sc="ssh-add -s /usr/lib/opensc-pkcs11.so"
+pkcs11so=`locate opensc-pkcs11.so`
+alias ssh-add-sc="ssh-add -s $pkcs11so"
 alias ssh-add-sc-pub="ssh-add -L"
 
 # .aliases