diff --git a/src/GPU/fix_gpu.cpp b/src/GPU/fix_gpu.cpp
index 85b4f8e0e9..3ca57133a9 100644
--- a/src/GPU/fix_gpu.cpp
+++ b/src/GPU/fix_gpu.cpp
@@ -275,7 +275,7 @@ void FixGPU::init()
   // also disallow GPU neighbor lists for hybrid styles
 
   if (force->pair_match("^hybrid",0) != nullptr) {
-    auto hybrid = dynamic_cast<PairHybrid *>( force->pair);
+    auto hybrid = dynamic_cast<PairHybrid *>(force->pair);
     for (int i = 0; i < hybrid->nstyles; i++)
       if (!utils::strmatch(hybrid->keywords[i],"/gpu$"))
         force->pair->no_virial_fdotr_compute = 1;
diff --git a/src/GPU/fix_nh_gpu.cpp b/src/GPU/fix_nh_gpu.cpp
index e90be98d6b..53999fe52c 100644
--- a/src/GPU/fix_nh_gpu.cpp
+++ b/src/GPU/fix_nh_gpu.cpp
@@ -77,7 +77,7 @@ void FixNHGPU::remap()
   double oldlo,oldhi;
   double expfac;
 
-  auto * _noalias const x = (dbl3_t *) atom->x[0];
+  dbl3_t * _noalias const x = (dbl3_t *) atom->x[0];
   int *mask = atom->mask;
   int nlocal = atom->nlocal;
   double *h = domain->h;
@@ -414,7 +414,7 @@ void FixNHGPU::nh_v_press()
     return;
   }
 
-  auto * _noalias const v = (dbl3_t *)atom->v[0];
+  dbl3_t * _noalias const v = (dbl3_t *)atom->v[0];
   int *mask = atom->mask;
   int nlocal = atom->nlocal;
   if (igroup == atom->firstgroup) nlocal = atom->nfirst;