diff --git a/src/agent/onefuzz-agent/src/local/libfuzzer_fuzz.rs b/src/agent/onefuzz-agent/src/local/libfuzzer_fuzz.rs
index 68d71c941..d254a7f5f 100644
--- a/src/agent/onefuzz-agent/src/local/libfuzzer_fuzz.rs
+++ b/src/agent/onefuzz-agent/src/local/libfuzzer_fuzz.rs
@@ -16,7 +16,7 @@ use anyhow::Result;
 use clap::{App, Arg, SubCommand};
 use tokio::sync::mpsc::UnboundedSender;
 
-const DISABLE_EXPECT_CRASH_ON_FAILURE: &str = "disable_expect_crash_on_failure";
+const EXPECT_CRASH_ON_FAILURE: &str = "expect_crash_on_failure";
 
 pub fn build_fuzz_config(
     args: &clap::ArgMatches<'_>,
@@ -35,7 +35,7 @@ pub fn build_fuzz_config(
     let target_workers = value_t!(args, "target_workers", usize).unwrap_or_default();
     let readonly_inputs = None;
     let check_fuzzer_help = args.is_present(CHECK_FUZZER_HELP);
-    let expect_crash_on_failure = !args.is_present(DISABLE_EXPECT_CRASH_ON_FAILURE);
+    let expect_crash_on_failure = args.is_present(EXPECT_CRASH_ON_FAILURE);
 
     let ensemble_sync_delay = None;
 
@@ -94,9 +94,9 @@ pub fn build_shared_args() -> Vec<Arg<'static, 'static>> {
         Arg::with_name(CHECK_FUZZER_HELP)
             .takes_value(false)
             .long(CHECK_FUZZER_HELP),
-        Arg::with_name(DISABLE_EXPECT_CRASH_ON_FAILURE)
+        Arg::with_name(EXPECT_CRASH_ON_FAILURE)
             .takes_value(false)
-            .long(DISABLE_EXPECT_CRASH_ON_FAILURE),
+            .long(EXPECT_CRASH_ON_FAILURE),
     ]
 }
 
diff --git a/src/agent/onefuzz-agent/src/tasks/fuzz/libfuzzer_fuzz.rs b/src/agent/onefuzz-agent/src/tasks/fuzz/libfuzzer_fuzz.rs
index ea19d59a0..96b20db91 100644
--- a/src/agent/onefuzz-agent/src/tasks/fuzz/libfuzzer_fuzz.rs
+++ b/src/agent/onefuzz-agent/src/tasks/fuzz/libfuzzer_fuzz.rs
@@ -61,7 +61,7 @@ pub struct Config {
     #[serde(default = "default_bool_true")]
     pub check_fuzzer_help: bool,
 
-    #[serde(default = "default_bool_true")]
+    #[serde(default)]
     pub expect_crash_on_failure: bool,
 
     #[serde(flatten)]