diff --git a/fuzzers/FRET/src/fuzzer.rs b/fuzzers/FRET/src/fuzzer.rs
index 2d0dd56f34..b922ce804d 100644
--- a/fuzzers/FRET/src/fuzzer.rs
+++ b/fuzzers/FRET/src/fuzzer.rs
@@ -182,7 +182,7 @@ pub fn fuzz() {
             let mut buf = target.as_slice();
             let mut len = buf.len();
             unsafe {
-                // #[cfg(feature = "fuzz_int")]
+                #[cfg(feature = "fuzz_int")]
                 {
                     for i in 0..DO_NUM_INTERRUPT {
                         let mut t : [u8; 4] = [0,0,0,0];