diff --git a/journal/src/calculate.rs b/journal/src/calculate.rs
index 9fbff83..d7c0d5a 100644
--- a/journal/src/calculate.rs
+++ b/journal/src/calculate.rs
@@ -27,9 +27,7 @@ pub fn calculate_sustenance_ingestion_amounts(sustenance: &mut SustenanceIngesti
 
 				calculate_sustenance_ingestion_amounts(ingestion)
 			}
-			IngestionKind::Hydration(hydration) => {
-				hydration.amount_ml *= sustenance.amount
-			}
+			IngestionKind::Hydration(hydration) => hydration.amount_ml *= sustenance.amount,
 			_ => {}
 		}
 	}
@@ -47,18 +45,17 @@ pub fn calculate_sustenance_contents(root: SustenanceIngestion) -> CalculatedVal
 			match ingestion {
 				IngestionKind::Unknown => {}
 				IngestionKind::Substance(substance) => {
-					let substance_ingestion = values
-						.substances
-						.get(&substance.id)
-						.cloned()
-						.unwrap_or(SubstanceIngestion {
-							id: substance.id.clone(),
-							substance: None,
-							dose: Dose::new_precise(0.0),
-							custom_unit_id: None,
-							roa: AdministrationRoute::Oral,
-							stomach_fullness: None,
-						});
+					let substance_ingestion =
+						values.substances.get(&substance.id).cloned().unwrap_or(
+							SubstanceIngestion {
+								id: substance.id.clone(),
+								substance: None,
+								dose: Dose::new_precise(0.0),
+								custom_unit_id: None,
+								roa: AdministrationRoute::Oral,
+								stomach_fullness: None,
+							},
+						);
 
 					values.substances.insert(
 						substance.id.clone(),
@@ -85,7 +82,7 @@ pub fn calculate_sustenance_contents(root: SustenanceIngestion) -> CalculatedVal
 					}
 				}
 				IngestionKind::Hydration(hydration) => {
-					values.hydration.amount_ml += hydration.amount_ml;
+					values.hydration.amount_ml *= hydration.amount_ml;
 				}
 			}
 		}