diff --git a/src/accel_utils.c b/src/accel_utils.c
index 88595e80b..cb0e70518 100644
--- a/src/accel_utils.c
+++ b/src/accel_utils.c
@@ -1319,7 +1319,7 @@ void inmem_add_ffdotpows(ffdotpows * fundamental, accelobs * obs,
 
     // Now add all the powers
 #ifdef _OPENMP
-#pragma omp parallel default(none) shared(rinds,fundamental,obs,numrs,numzs,harm_fract)
+#pragma omp parallel shared(rinds,fundamental,obs)
 #endif
     {
         const int zlo = fundamental->zlo;
@@ -1370,7 +1370,7 @@ void inmem_add_ffdotpows_trans(ffdotpows * fundamental, accelobs * obs,
 
     // Now add all the powers
 #ifdef _OPENMP
-#pragma omp parallel default(none) shared(rinds,fundamental,obs,numrs,numzs,harm_fract)
+#pragma omp parallel shared(rinds,fundamental,obs)
 #endif
     {
         const int zlo = fundamental->zlo;
diff --git a/src/dispersion.c b/src/dispersion.c
index b009b934d..f45b2d5ba 100644
--- a/src/dispersion.c
+++ b/src/dispersion.c
@@ -192,7 +192,7 @@ void dedisp_subbands(float *data, float *lastdata,
         float *sub = result + subnum * numpts;
         float *chan = lastdata + ii * numpts + dind;
 #ifdef _OPENMP
-#pragma omp parallel for default(none) private(jj) shared(sub,chan,numpts,dind)
+#pragma omp parallel for private(jj) shared(sub,chan,numpts)
 #endif
         for (jj = 0; jj < numpts - dind; jj++)
             sub[jj] += chan[jj];
diff --git a/src/psrfits.c b/src/psrfits.c
index 1022ac98c..e45a8930d 100644
--- a/src/psrfits.c
+++ b/src/psrfits.c
@@ -935,7 +935,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
             const int idx = (s->use_poln - 1) * s->num_channels;
             if (s->bits_per_sample == 16) {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;
@@ -949,7 +949,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
                 }
             } else if (s->bits_per_sample == 32) {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;
@@ -964,7 +964,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
                 }
             } else {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;
@@ -981,7 +981,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
             const int idx = s->num_channels;
             if (s->bits_per_sample == 16) {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;
@@ -1000,7 +1000,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
                 }
             } else if (s->bits_per_sample == 32) {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;
@@ -1020,7 +1020,7 @@ void get_PSRFITS_subint(float *fdata, unsigned char *cdata, struct spectra_info
                 }
             } else {
 #ifdef _OPENMP
-#pragma omp parallel for default(none) shared(s,cdata,fdata,scales,offsets,weights,idx)
+#pragma omp parallel for shared(s,cdata,fdata,scales,offsets,weights)
 #endif
                 for (ii = 0; ii < s->spectra_per_subint; ii++) {
                     int jj;