diff --git a/src/cli/chem-comp-dict/create-ions.ts b/src/cli/chem-comp-dict/create-ions.ts
index 9d3beb3cc23f7f4edf114cb220d9294385b52445..5ad5c784dee66da3bad9602473d18168d08aa4e6 100644
--- a/src/cli/chem-comp-dict/create-ions.ts
+++ b/src/cli/chem-comp-dict/create-ions.ts
@@ -65,7 +65,7 @@ parser.add_argument('--forceDownload', '-f', {
     action: 'store_true',
     help: 'Force download of CCD and PVCD.'
 });
-parser.add_argument('--ccdUrl', '-a', {
+parser.add_argument('--ccdUrl', '-c', {
     help: 'Fetch the CCD from a custom URL. This forces download of the CCD.',
     required: false
 });
diff --git a/src/cli/chem-comp-dict/create-saccharides.ts b/src/cli/chem-comp-dict/create-saccharides.ts
index 87be4ddaad3820d1c26c9a7b60ecb71ae67627a6..dd629b65918a7ad7f0762647c650c0074b4ce526 100644
--- a/src/cli/chem-comp-dict/create-saccharides.ts
+++ b/src/cli/chem-comp-dict/create-saccharides.ts
@@ -68,7 +68,7 @@ parser.add_argument('--forceDownload', '-f', {
     action: 'store_true',
     help: 'Force download of CCD and PVCD.'
 });
-parser.add_argument('--ccdUrl', '-a', {
+parser.add_argument('--ccdUrl', '-c', {
     help: 'Fetch the CCD from a custom URL. This forces download of the CCD.',
     required: false
 });
diff --git a/src/cli/chem-comp-dict/create-table.ts b/src/cli/chem-comp-dict/create-table.ts
index ea57bebcdff7c1b87cfd81aab01e610cc88646e2..f26b884e3d73009ff8b438de66f7255b04aa4a10 100644
--- a/src/cli/chem-comp-dict/create-table.ts
+++ b/src/cli/chem-comp-dict/create-table.ts
@@ -283,11 +283,11 @@ parser.add_argument('--ccaOut', '-a', {
     help: 'Optional generated file output path for chem_comp_atom data.',
     required: false
 });
-parser.add_argument('--ccdUrl', '-a', {
+parser.add_argument('--ccdUrl', '-c', {
     help: 'Fetch the CCD from a custom URL. This forces download of the CCD.',
     required: false
 });
-parser.add_argument('--pvcdUrl', '-a', {
+parser.add_argument('--pvcdUrl', '-p', {
     help: 'Fetch the PVCD from a custom URL. This forces download of the PVCD.',
     required: false
 });