diff --git a/src/MAKE/MACHINES/Makefile.perlmutter_kokkos b/src/MAKE/MACHINES/Makefile.perlmutter_kokkos
index 81164aa040..26df2dc17e 100644
--- a/src/MAKE/MACHINES/Makefile.perlmutter_kokkos
+++ b/src/MAKE/MACHINES/Makefile.perlmutter_kokkos
@@ -9,7 +9,7 @@ SHELL = /bin/sh
 KOKKOS_ABSOLUTE_PATH = $(shell cd $(KOKKOS_PATH); pwd)
 
 CC =		$(KOKKOS_ABSOLUTE_PATH)/bin/nvcc_wrapper
-CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe --diag_suppress=128
+CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe -diag-suppress 128
 SHFLAGS =	-fPIC
 DEPFLAGS =	-M
 
diff --git a/src/MAKE/MACHINES/Makefile.summit_kokkos b/src/MAKE/MACHINES/Makefile.summit_kokkos
index 57c25702aa..2207b0ff56 100644
--- a/src/MAKE/MACHINES/Makefile.summit_kokkos
+++ b/src/MAKE/MACHINES/Makefile.summit_kokkos
@@ -9,7 +9,7 @@ SHELL = /bin/sh
 KOKKOS_ABSOLUTE_PATH = $(shell cd $(KOKKOS_PATH); pwd)
 
 CC =		$(KOKKOS_ABSOLUTE_PATH)/bin/nvcc_wrapper
-CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe --diag_suppress=128
+CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe -diag-suppress 128
 SHFLAGS =	-fPIC
 DEPFLAGS =	-M
 
diff --git a/src/MAKE/OPTIONS/Makefile.kokkos_cuda_mpi b/src/MAKE/OPTIONS/Makefile.kokkos_cuda_mpi
index fd173b5588..720ee5ce2e 100644
--- a/src/MAKE/OPTIONS/Makefile.kokkos_cuda_mpi
+++ b/src/MAKE/OPTIONS/Makefile.kokkos_cuda_mpi
@@ -10,7 +10,7 @@ KOKKOS_ABSOLUTE_PATH = $(shell cd $(KOKKOS_PATH); pwd)
 export MPICH_CXX = $(KOKKOS_ABSOLUTE_PATH)/bin/nvcc_wrapper
 export OMPI_CXX = $(KOKKOS_ABSOLUTE_PATH)/bin/nvcc_wrapper
 CC =		mpicxx
-CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe --diag_suppress=128
+CCFLAGS =	-g -O3 -DNDEBUG -Xcudafe --diag_suppress=unrecognized_pragma -Xcudafe -diag-suppress 128
 SHFLAGS =	-fPIC
 # uncomment when compiling with Intel 21.5 or older
 FMTFLAGS = 	# -std=c++11