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-rw-r--r--var/spack/repos/builtin/packages/heffte/package.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/heffte/package.py b/var/spack/repos/builtin/packages/heffte/package.py
index 80b7e65485..7262fac7a2 100644
--- a/var/spack/repos/builtin/packages/heffte/package.py
+++ b/var/spack/repos/builtin/packages/heffte/package.py
@@ -40,7 +40,7 @@ class Heffte(CMakePackage):
conflicts('~fftw', when='~mkl~cuda') # requires at least one backend
conflicts('+fftw', when='+mkl@:1.0') # old API supports at most one CPU backend
- conflicts('openmpi~cuda', when='+cuda') # +cuda requires CUDA enabled OpenMPI
+ conflicts('^openmpi~cuda', when='+cuda') # +cuda requires CUDA enabled OpenMPI
conflicts('~cuda', when='+magma') # magma requires CUDA or HIP
conflicts('+python', when="@:1.0") # python support was added post v1.0
conflicts('+fortran', when="@:1.0") # fortran support was added post v1.0