diff --git a/src/components/AnnotationManifestsAccordion.js b/src/components/AnnotationManifestsAccordion.js
index 95cb2f11e3b6d0068c055259380a269b1b21f48f..d12d472125f277aab2adc663f905b1b4d0322b32 100644
--- a/src/components/AnnotationManifestsAccordion.js
+++ b/src/components/AnnotationManifestsAccordion.js
@@ -127,7 +127,7 @@ export class AnnotationManifestsAccordion extends Component {
                           this.handleOpenManifestSideToSide(e, manifest.id);
                         }}
                       >
-                        {t('openInCompanionWindow')}
+                        {t('open')}
                       </Button>
                     </Tooltip>
                   </CardActions>
diff --git a/src/locales/en/translation.json b/src/locales/en/translation.json
index 43e937a3040bb7cf3ff7e8e42e179083e4217449..b0f88dbeb88dc2cb0ebf24298a69d74b64815ad6 100644
--- a/src/locales/en/translation.json
+++ b/src/locales/en/translation.json
@@ -81,7 +81,7 @@
     "login": "Log in",
     "logout": "Log out",
     "manifestError": "The resource cannot be added:",
-    "manifestFound": "Manifests found:",
+    "manifestFound": "Details",
     "maximizeWindow": "Maximize window",
     "minimizeWindow": "Minimize window",
     "mirador": "Mirador",
@@ -100,6 +100,7 @@
     "numItems_one": "{{number}} item",
     "numItems_other": "{{number}} items",
     "off": "Off",
+    "open": "Open",
     "openCompanionWindow_annotations": "Annotations",
     "openCompanionWindow_attribution": "Rights",
     "openCompanionWindow_canvas": "Index",
diff --git a/src/locales/fr/translation.json b/src/locales/fr/translation.json
index 7ff8bc8d4b56c0ed0d72a654a177236fe65bf27b..d835bed0d136fe344f1f62acbc95f94e28b50f46 100644
--- a/src/locales/fr/translation.json
+++ b/src/locales/fr/translation.json
@@ -78,7 +78,7 @@
     "login": "Se connecter",
     "logout": "Se déconnecter",
     "manifestError": "Cette ressource ne peut pas être ajoutée :",
-    "manifestFound": "Manifestes trouvés:",
+    "manifestFound": "Détails",
     "maximizeWindow": "Agrandir cette fenêtre",
     "minimizeWindow": "Réduire cette fenêtre",
     "mirador": "Mirador",
@@ -96,6 +96,7 @@
     "numItems_one": "{{number}} image",
     "numItems_other": "{{number}} images",
     "off": "aucun",
+    "open": "Ouvrir",
     "openCompanionWindow_annotations": "Annotations",
     "openCompanionWindow_attribution": "Droits",
     "openCompanionWindow_canvas": "Index",