diff --git a/src/prelaunch_data_generator/cl_validator_keystores/cl_validator_keystore_generator.star b/src/prelaunch_data_generator/cl_validator_keystores/cl_validator_keystore_generator.star
index faa6be9..7d857b2 100644
--- a/src/prelaunch_data_generator/cl_validator_keystores/cl_validator_keystore_generator.star
+++ b/src/prelaunch_data_generator/cl_validator_keystores/cl_validator_keystore_generator.star
@@ -47,7 +47,7 @@ def generate_cl_validator_keystores(
 		output_dirpath = NODE_KEYSTORES_OUTPUT_DIRPATH_FORMAT_STR.format(idx)
 
 		start_index = idx * num_validators_per_node
-		stop_index = (idx+1) * num_validators_per_node - 1
+		stop_index = (idx+1) * num_validators_per_node
 
 		generate_keystores_cmd = "{0} keystores --insecure --prysm-pass {1} --out-loc {2} --source-mnemonic \"{3}\" --source-min {4} --source-max {5}".format(
 			KEYSTORES_GENERATION_TOOL_NAME,