diff --git a/src/KOKKOS/improper_harmonic_kokkos.h b/src/KOKKOS/improper_harmonic_kokkos.h
index a2b8e1fec0563c5ffc1c8372dd41bcd06f8b2fbb..921bbdcaf2830a69f34f307f36b1bcc15009a751 100755
--- a/src/KOKKOS/improper_harmonic_kokkos.h
+++ b/src/KOKKOS/improper_harmonic_kokkos.h
@@ -11,7 +11,7 @@
    See the README file in the top-level LAMMPS directory.
 ------------------------------------------------------------------------- */
 
-#ifdef DIHEDRAL_CLASS
+#ifdef IMPROPER_CLASS
 
 ImproperStyle(harmonic/kk,ImproperHarmonicKokkos<LMPDeviceType>)
 ImproperStyle(harmonic/kk/device,ImproperHarmonicKokkos<LMPDeviceType>)