diff --git a/src/bin/cargo-ziggy/add_seeds.rs b/src/bin/cargo-ziggy/add_seeds.rs
index 5a038dd..ea3f358 100644
--- a/src/bin/cargo-ziggy/add_seeds.rs
+++ b/src/bin/cargo-ziggy/add_seeds.rs
@@ -20,7 +20,8 @@ impl AddSeeds {
                 [
                     "afl",
                     "addseeds",
-                    &format!("-o{}/{}/afl", self.ziggy_output.display(), self.target),
+                    "-o",
+                    &format!("{}/{}/afl", self.ziggy_output.display(), self.target),
                     "-i",
                     &input,
                 ]