diff --git a/jenkins/envs/daint_nvcc_cray.sh b/jenkins/envs/daint_nvcc_cray.sh
index ae98ddd0e..a02525855 100644
--- a/jenkins/envs/daint_nvcc_cray.sh
+++ b/jenkins/envs/daint_nvcc_cray.sh
@@ -7,7 +7,7 @@ module switch cudatoolkit/11.2.0_3.39-2.1__gf93aa1c
 module switch cce/10.0.2
 
 export GTCMAKE_GT_CLANG_CUDA_MODE=NVCC-CUDA
-export GTCMAKE_CMAKE_CUDA_FLAGS_RELEASE='-O3 -DNDEBUG --use_fast_math'
+export GTCMAKE_CMAKE_CUDA_FLAGS_RELEASE='-O3 -DNDEBUG'
 
 export CTEST_PARALLEL_LEVEL=1
 
diff --git a/jenkins/envs/daint_nvcc_gcc.sh b/jenkins/envs/daint_nvcc_gcc.sh
index 6598f232b..744ff1372 100644
--- a/jenkins/envs/daint_nvcc_gcc.sh
+++ b/jenkins/envs/daint_nvcc_gcc.sh
@@ -17,6 +17,6 @@ export CUDAHOSTCXX="$CXX"
 
 export GTCMAKE_CMAKE_CXX_FLAGS='-march=haswell'
 export GTCMAKE_CMAKE_CXX_FLAGS_RELEASE='-Ofast -DNDEBUG'
-export GTCMAKE_CMAKE_CUDA_FLAGS_RELEASE='-O3 -DNDEBUG --use_fast_math'
+export GTCMAKE_CMAKE_CUDA_FLAGS_RELEASE='-O3 -DNDEBUG'
 
 export CTEST_PARALLEL_LEVEL=1