diff --git a/src/bin/cargo-ziggy/build.rs b/src/bin/cargo-ziggy/build.rs
index 7994795..89edd4f 100644
--- a/src/bin/cargo-ziggy/build.rs
+++ b/src/bin/cargo-ziggy/build.rs
@@ -30,34 +30,23 @@ impl Build {
 
             // Add the --release argument if self.release is true
             if self.release {
-                assert!(!self.release, "cannot use --release for ASAN builds");
+                assert!(!self.asan, "cannot use --release for ASAN builds");
                 afl_args.push("--release");
             }
 
             let opt_level = env::var("AFL_OPT_LEVEL").unwrap_or("0".to_string());
             let mut rust_flags = env::var("RUSTFLAGS").unwrap_or_default();
             let mut rust_doc_flags = env::var("RUSTDOCFLAGS").unwrap_or_default();
-            let asan_target_str = format!("--target={ASAN_TARGET}");
-            let opt_level_str = format!("-Copt-level={opt_level}");
-
-            if self.asan {
-                assert_eq!(opt_level, "0", "AFL_OPT_LEVEL must be 0 for ASAN builds");
-                afl_args.push(&asan_target_str);
-                afl_args.extend(["-Z", "build-std"]);
-                rust_flags.push_str(" -Zsanitizer=address ");
-                rust_flags.push_str(&opt_level_str);
-                rust_doc_flags.push_str(" -Zsanitizer=address ")
-            };
 
             // First fuzzer we build: AFL++
             let run = process::Command::new(cargo.clone())
-                .args(afl_args)
+                .args(&afl_args)
                 .env("AFL_QUIET", "1")
                 // need to specify for afl.rs so that we build with -Copt-level=0
-                .env("AFL_OPT_LEVEL", opt_level)
+                .env("AFL_OPT_LEVEL", &opt_level)
                 .env("AFL_LLVM_CMPLOG", "1") // for afl.rs feature "plugins"
-                .env("RUSTFLAGS", rust_flags)
-                .env("RUSTDOCFLAGS", rust_doc_flags)
+                .env("RUSTFLAGS", &rust_flags)
+                .env("RUSTDOCFLAGS", &rust_doc_flags)
                 .spawn()?
                 .wait()
                 .context("Error spawning afl build command")?;
@@ -69,6 +58,39 @@ impl Build {
                 ));
             }
 
+            let asan_target_str = format!("--target={ASAN_TARGET}");
+            let opt_level_str = format!("-Copt-level={opt_level}");
+
+            // If ASAN is enabled, build both a sanitized binary and a non-sanitized binary.
+            if self.asan {
+                eprintln!("    {} afl (ASan)", style("Building").red().bold());
+                assert_eq!(opt_level, "0", "AFL_OPT_LEVEL must be 0 for ASAN builds");
+                afl_args.push(&asan_target_str);
+                afl_args.extend(["-Z", "build-std"]);
+                rust_flags.push_str(" -Zsanitizer=address ");
+                rust_flags.push_str(&opt_level_str);
+                rust_doc_flags.push_str(" -Zsanitizer=address ");
+
+                let run = process::Command::new(cargo.clone())
+                    .args(afl_args)
+                    .env("AFL_QUIET", "1")
+                    // need to specify for afl.rs so that we build with -Copt-level=0
+                    .env("AFL_OPT_LEVEL", opt_level)
+                    .env("AFL_LLVM_CMPLOG", "1") // for afl.rs feature "plugins"
+                    .env("RUSTFLAGS", rust_flags)
+                    .env("RUSTDOCFLAGS", rust_doc_flags)
+                    .spawn()?
+                    .wait()
+                    .context("Error spawning afl build command")?;
+
+                if !run.success() {
+                    return Err(anyhow!(
+                        "Error building afl fuzzer: Exited with {:?}",
+                        run.code()
+                    ));
+                }
+            };
+
             eprintln!("    {} afl", style("Finished").cyan().bold());
         }
 
diff --git a/src/bin/cargo-ziggy/fuzz.rs b/src/bin/cargo-ziggy/fuzz.rs
index e5bdbee..7659451 100644
--- a/src/bin/cargo-ziggy/fuzz.rs
+++ b/src/bin/cargo-ziggy/fuzz.rs
@@ -481,7 +481,7 @@ impl Fuzz {
                     false => {
                         if self.release {
                             format!("./target/afl/release/{}", self.target)
-                        } else if self.asan {
+                        } else if self.asan && job_num == 0 {
                             format!("./target/afl/{ASAN_TARGET}/debug/{}", self.target)
                         } else {
                             format!("./target/afl/debug/{}", self.target)