diff --git a/src/libtorchaudio/cuctc/src/ctc_prefix_decoder_kernel_v2.cu b/src/libtorchaudio/cuctc/src/ctc_prefix_decoder_kernel_v2.cu
index 4ca8f1bf24..e6192155a2 100644
--- a/src/libtorchaudio/cuctc/src/ctc_prefix_decoder_kernel_v2.cu
+++ b/src/libtorchaudio/cuctc/src/ctc_prefix_decoder_kernel_v2.cu
@@ -24,6 +24,7 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <algorithm>
+#include <float.h>
 #include "ctc_fast_divmod.cuh"
 #include "cub/cub.cuh"
 #include "device_data_wrap.h"