diff --git a/CHANGELOG.md b/CHANGELOG.md
index caf84ed..118b5c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ All notable changes to Forel are documented here. Format loosely follows
 
 ### Fixed
 - Date Added conditions no longer crash when reading a file's timestamp.
+- Editing the number in a relative date or size condition no longer resets its unit, which could silently turn "2 Months" into "2 Days".
 
 ## [1.1.0] - 2026-10-22
 
diff --git a/Sources/ForelApp/Views/RuleEditorView.swift b/Sources/ForelApp/Views/RuleEditorView.swift
index 0ed76fd..ba507d5 100644
--- a/Sources/ForelApp/Views/RuleEditorView.swift
+++ b/Sources/ForelApp/Views/RuleEditorView.swift
@@ -679,7 +679,9 @@ private struct RelativeDateValueEditor: View {
     }
 
     private var parts: (number: String, unit: String) {
-        let pieces = value.split(separator: " ", maxSplits: 1).map(String.init)
+        // omittingEmptySubsequences: false keeps "" as the number when the
+        // field is transiently empty mid-edit, so the unit survives keystrokes.
+        let pieces = value.split(separator: " ", maxSplits: 1, omittingEmptySubsequences: false).map(String.init)
         let number = pieces.first?.filter(\.isNumber)
         let unit = pieces.count > 1 ? pieces[1] : "days"
         return ((number?.isEmpty == false ? number! : "7"), units.contains(unit) ? unit : "days")
@@ -714,7 +716,7 @@ private struct SizeValueEditor: View {
     }
 
     private var parts: (number: String, unit: String) {
-        let pieces = value.split(separator: " ", maxSplits: 1).map(String.init)
+        let pieces = value.split(separator: " ", maxSplits: 1, omittingEmptySubsequences: false).map(String.init)
         let number = pieces.first?.filter { $0.isNumber || $0 == "." }
         let rawUnit = pieces.count > 1 ? pieces[1] : "MB"
         let unit = ["bytes", "KB", "MB", "GB"].contains(rawUnit) ? rawUnit : "MB"