diff --git a/src/manip.rs b/src/manip.rs
index a7ce984..c9b252e 100644
--- a/src/manip.rs
+++ b/src/manip.rs
@@ -79,13 +79,13 @@ impl LimitList {
         src
     }
 
-    pub fn import_file(&mut self, path: &str, limit: Limit) -> &mut Self {
-        let contents = fs::read_to_string(path).unwrap();
+    pub fn import_file(&mut self, path: &str, limit: Limit) -> std::io::Result<&mut Self> {
+        let contents = fs::read_to_string(path)?;
         for host in contents.lines().filter(|line| !line.is_empty()) {
             self.add_host(host, limit);
         }
 
-        self
+        Ok(self)
     }
 }
 
diff --git a/src/tests/manip.rs b/src/tests/manip.rs
index 9a9597c..3ea0565 100644
--- a/src/tests/manip.rs
+++ b/src/tests/manip.rs
@@ -78,10 +78,10 @@ fn limitlist_from_map_and_trust() {
 }
 
 #[test]
-fn limitlist_from_file() {
+fn limitlist_from_file() -> std::io::Result<()> {
     let mut src = LimitList::default();
-    src.import_file("test/example_blocklist.txt", Limit::Block)
-        .import_file("test/example_mutelist.txt", Limit::Silence);
+    src.import_file("test/example_blocklist.txt", Limit::Block)?
+        .import_file("test/example_mutelist.txt", Limit::Silence)?;
 
     let test_src = LimitList::from(HashMap::from([
         (String::from("example.com"), Limit::Block),
@@ -90,10 +90,12 @@ fn limitlist_from_file() {
     ]));
 
     assert_eq!(test_src, src);
+
+    Ok(())
 }
 
 #[test]
-fn mergedlist_from_limitlist() {
+fn mergedlist_from_limitlist() -> std::io::Result<()> {
     let mut ml = MergedLimitList::default();
 
     let src1 = LimitList::from(HashMap::from([
@@ -103,8 +105,8 @@ fn mergedlist_from_limitlist() {
     ]));
 
     let mut src2 = LimitList::default();
-    src2.import_file("test/example_blocklist.txt", Limit::Block)
-        .import_file("test/example_mutelist.txt", Limit::Silence);
+    src2.import_file("test/example_blocklist.txt", Limit::Block)?
+        .import_file("test/example_mutelist.txt", Limit::Silence)?;
 
     ml.add_limit_list(src1).add_limit_list(src2);
 
@@ -147,10 +149,12 @@ fn mergedlist_from_limitlist() {
     };
 
     assert_eq!(ml, test_ml);
+
+    Ok(())
 }
 
 #[test]
-fn mergedlist_export_txt() {
+fn mergedlist_export_txt() -> std::io::Result<()> {
     let mut ml = MergedLimitList::default();
 
     let src1 = LimitList::from(HashMap::from([
@@ -160,8 +164,8 @@ fn mergedlist_export_txt() {
     ]));
 
     let mut src2 = LimitList::default();
-    src2.import_file("test/example_blocklist.txt", Limit::Block)
-        .import_file("test/example_mutelist.txt", Limit::Silence);
+    src2.import_file("test/example_blocklist.txt", Limit::Block)?
+        .import_file("test/example_mutelist.txt", Limit::Silence)?;
 
     let src3 = LimitList::build(
         HashMap::from([
@@ -186,9 +190,11 @@ fn mergedlist_export_txt() {
 
     let _ = ml.export_file("test/test_blocks.txt", "test/test_mutes.txt", (200, 150));
 
-    let file_blocks: String = fs::read_to_string("test/test_blocks.txt").unwrap();
-    let file_mutes: String = fs::read_to_string("test/test_mutes.txt").unwrap();
+    let file_blocks: String = fs::read_to_string("test/test_blocks.txt")?;
+    let file_mutes: String = fs::read_to_string("test/test_mutes.txt")?;
 
     assert_eq!(file_blocks, "example.com\n");
     assert_eq!(file_mutes, "example.net\nexample.org\n");
+
+    Ok(())
 }