diff --git a/exercises/024_errors4.zig b/exercises/024_errors4.zig
index 02ec0f2..3768b60 100644
--- a/exercises/024_errors4.zig
+++ b/exercises/024_errors4.zig
@@ -59,7 +59,12 @@ fn fixTooSmall(n: u32) MyNumberError!u32 {
     // If we get a TooSmall error, we should return 10.
     // If we get any other error, we should return that error.
     // Otherwise, we return the u32 number.
-    return detectProblems(n) ???;
+    return detectProblems(n) catch |err| {
+        if (err == MyNumberError.TooSmall) {
+            return 10;
+        }
+        return err;
+    };
 }
 
 fn detectProblems(n: u32) MyNumberError!u32 {
diff --git a/exercises/025_errors5.zig b/exercises/025_errors5.zig
index 94bf1c7..55e08a8 100644
--- a/exercises/025_errors5.zig
+++ b/exercises/025_errors5.zig
@@ -26,7 +26,7 @@ fn addFive(n: u32) MyNumberError!u32 {
     // This function needs to return any error which might come back from detect().
     // Please use a "try" statement rather than a "catch".
     //
-    const x = detect(n);
+    const x = try detect(n);
 
     return x + 5;
 }