diff --git a/fuzz/fuzz_targets/jit_cranelift.rs b/fuzz/fuzz_targets/jit_cranelift.rs
index 792262450..ce7b60c58 100644
--- a/fuzz/fuzz_targets/jit_cranelift.rs
+++ b/fuzz/fuzz_targets/jit_cranelift.rs
@@ -48,7 +48,9 @@ fuzz_target!(|module: WasmSmithModule| {
         Ok(_) => {}
         Err(e) => {
             let error_message = format!("{}", e);
-            if error_message.contains("RuntimeError: ") && error_message.contains("out of bounds") {
+            if error_message.starts_with("RuntimeError: ")
+                && error_message.contains("out of bounds")
+            {
                 return;
             }
             panic!("{}", e);
diff --git a/fuzz/fuzz_targets/jit_llvm.rs b/fuzz/fuzz_targets/jit_llvm.rs
index 6c1b95d31..0bde001c1 100644
--- a/fuzz/fuzz_targets/jit_llvm.rs
+++ b/fuzz/fuzz_targets/jit_llvm.rs
@@ -48,7 +48,9 @@ fuzz_target!(|module: WasmSmithModule| {
         Ok(_) => {}
         Err(e) => {
             let error_message = format!("{}", e);
-            if error_message.contains("RuntimeError: ") && error_message.contains("out of bounds") {
+            if error_message.starts_with("RuntimeError: ")
+                && error_message.contains("out of bounds")
+            {
                 return;
             }
             panic!("{}", e);
diff --git a/fuzz/fuzz_targets/jit_singlepass.rs b/fuzz/fuzz_targets/jit_singlepass.rs
index 1fc528604..0a1508508 100644
--- a/fuzz/fuzz_targets/jit_singlepass.rs
+++ b/fuzz/fuzz_targets/jit_singlepass.rs
@@ -56,7 +56,9 @@ fuzz_target!(|module: WasmSmithModule| {
         Ok(_) => {}
         Err(e) => {
             let error_message = format!("{}", e);
-            if error_message.contains("RuntimeError: ") && error_message.contains("out of bounds") {
+            if error_message.starts_with("RuntimeError: ")
+                && error_message.contains("out of bounds")
+            {
                 return;
             }
             panic!("{}", e);
diff --git a/fuzz/fuzz_targets/metering.rs b/fuzz/fuzz_targets/metering.rs
index 4f7e84c67..c320ddcd0 100644
--- a/fuzz/fuzz_targets/metering.rs
+++ b/fuzz/fuzz_targets/metering.rs
@@ -62,7 +62,9 @@ fuzz_target!(|module: WasmSmithModule| {
         Ok(_) => {}
         Err(e) => {
             let error_message = format!("{}", e);
-            if error_message.contains("RuntimeError: ") && error_message.contains("out of bounds") {
+            if error_message.starts_with("RuntimeError: ")
+                && error_message.contains("out of bounds")
+            {
                 return;
             }
             panic!("{}", e);
diff --git a/fuzz/fuzz_targets/native_cranelift.rs b/fuzz/fuzz_targets/native_cranelift.rs
index 007f57c8f..b83328f6f 100644
--- a/fuzz/fuzz_targets/native_cranelift.rs
+++ b/fuzz/fuzz_targets/native_cranelift.rs
@@ -53,7 +53,9 @@ fuzz_target!(|module: WasmSmithModule| {
         Ok(_) => {}
         Err(e) => {
             let error_message = format!("{}", e);
-            if error_message.contains("RuntimeError: ") && error_message.contains("out of bounds") {
+            if error_message.starts_with("RuntimeError: ")
+                && error_message.contains("out of bounds")
+            {
                 return;
             }
             panic!("{}", e);