diff --git a/activity_browser/layouts/pages/activity_details/exchanges_tab.py b/activity_browser/layouts/pages/activity_details/exchanges_tab.py
index ccde25bb6..4473d6d2b 100644
--- a/activity_browser/layouts/pages/activity_details/exchanges_tab.py
+++ b/activity_browser/layouts/pages/activity_details/exchanges_tab.py
@@ -277,7 +277,9 @@ def createEditor(self, parent, option, index):
         editor = QtWidgets.QLineEdit(parent)
         locale = QtCore.QLocale(QtCore.QLocale.English)
         locale.setNumberOptions(QtCore.QLocale.RejectGroupSeparator)
-        validator = QtGui.QDoubleValidator()
+        validator = QtGui.QRegularExpressionValidator(
+            QtCore.QRegularExpression(r"^[+-]?((\d+(\.\d*)?)|(\.\d+))([eE][+-]?\d+)?$"),
+            editor)
         validator.setLocale(locale)
         editor.setValidator(validator)
         return editor