diff --git a/src/MAKE/MACHINES/Makefile.crusher_kokkos b/src/MAKE/MACHINES/Makefile.crusher_kokkos
index 7dc1447d4e..c7214aab90 100644
--- a/src/MAKE/MACHINES/Makefile.crusher_kokkos
+++ b/src/MAKE/MACHINES/Makefile.crusher_kokkos
@@ -9,7 +9,7 @@ SHELL = /bin/sh
 KOKKOS_ABSOLUTE_PATH = $(shell cd $(KOKKOS_PATH); pwd)
 
 CC =		hipcc
-CCFLAGS =	-g -O3 -munsafe-fp-atomics -DNDEBUG
+CCFLAGS =	-g -O3 -munsafe-fp-atomics -DNDEBUG -DKOKKOS_ENABLE_HIP_MULTIPLE_KERNEL_INSTANTIATIONS
 SHFLAGS =	-fPIC
 DEPFLAGS =	-M
 
diff --git a/src/MAKE/MACHINES/Makefile.spock_kokkos b/src/MAKE/MACHINES/Makefile.spock_kokkos
index a85ebb3039..213236c9e9 100644
--- a/src/MAKE/MACHINES/Makefile.spock_kokkos
+++ b/src/MAKE/MACHINES/Makefile.spock_kokkos
@@ -9,7 +9,7 @@ SHELL = /bin/sh
 KOKKOS_ABSOLUTE_PATH = $(shell cd $(KOKKOS_PATH); pwd)
 
 CC =		hipcc
-CCFLAGS =	-g -O3 -DNDEBUG
+CCFLAGS =	-g -O3 -DNDEBUG -DKOKKOS_ENABLE_HIP_MULTIPLE_KERNEL_INSTANTIATIONS
 SHFLAGS =	-fPIC
 DEPFLAGS =	-M