diff --git a/card-functionality/src/import.rs b/card-functionality/src/import.rs
index 9c6e5fc..e0e3893 100644
--- a/card-functionality/src/import.rs
+++ b/card-functionality/src/import.rs
@@ -13,7 +13,12 @@ use card_functionality::util;
 fn main() -> Result<()> {
     env_logger::init();
 
-    let config = TestConfig::load("config/test-cards.toml")?;
+    let args: Vec<String> = std::env::args().collect();
+    let config = if args.len() <= 1 {
+        TestConfig::load("config/test-cards.toml")?
+    } else {
+        TestConfig::load(&args[1])?
+    };
 
     let cards = config.into_cardapps();
 
diff --git a/card-functionality/src/keygen.rs b/card-functionality/src/keygen.rs
index fb888b5..45976b0 100644
--- a/card-functionality/src/keygen.rs
+++ b/card-functionality/src/keygen.rs
@@ -12,7 +12,12 @@ use sequoia_openpgp::Cert;
 fn main() -> Result<()> {
     env_logger::init();
 
-    let config = TestConfig::load("config/test-cards.toml")?;
+    let args: Vec<String> = std::env::args().collect();
+    let config = if args.len() <= 1 {
+        TestConfig::load("config/test-cards.toml")?
+    } else {
+        TestConfig::load(&args[1])?
+    };
 
     let cards = config.into_cardapps();