diff --git a/VERSIONS_HOTLINE/186279 b/VERSIONS_HOTLINE/186279
new file mode 100644
index 0000000000000000000000000000000000000000..7b59135db4dac5e3c5e88c3bba3792d55d98d280
--- /dev/null
+++ b/VERSIONS_HOTLINE/186279
@@ -0,0 +1 @@
+ - correctif #186279 : Export ressources numériques OAI : Correction de la construction de l'url d'export OAI avec le paramètre identity_provider
\ No newline at end of file
diff --git a/library/Class/WebService/OAI.php b/library/Class/WebService/OAI.php
index e06c81ae00b86eefaccb681e5695850142c004b9..6cc8cda1f148091f20f85dd579fcccba4c62f148 100644
--- a/library/Class/WebService/OAI.php
+++ b/library/Class/WebService/OAI.php
@@ -38,7 +38,7 @@ class Class_WebService_OAI extends Class_WebService_Abstract {
     Verb = 'verb',
     MetadataPrefix = 'metadataPrefix',
     Set = 'set',
-    IdentityProvider = 'identityProvider',
+    IdentityProvider = 'identity_provider',
     From = 'from',
     Until = 'until',
     ResumptionToken = 'resumptionToken',
diff --git a/tests/application/modules/opac/controllers/OAIControllerListRecordsTest.php b/tests/application/modules/opac/controllers/OAIControllerListRecordsTest.php
index a4284fcc1a0458c4a8e0e7e2a9f9d50e73a7b7de..121f87fa95d398af2ec804b351f6596ca029bab7 100644
--- a/tests/application/modules/opac/controllers/OAIControllerListRecordsTest.php
+++ b/tests/application/modules/opac/controllers/OAIControllerListRecordsTest.php
@@ -474,7 +474,7 @@ class OAIControllerListRecordsWithIdentityProviderTest
                    ]);
 
 
-    $this->dispatch('/opac/oai/request?verb=ListRecords&metadataPrefix=oai_dc_bokeh&set=albums&identityProvider=1');
+    $this->dispatch('/opac/oai/request/identity_provider/1?verb=ListRecords&metadataPrefix=oai_dc_bokeh&set=albums');
     $this->_body = $this->_response->getBody();
   }
 
@@ -499,7 +499,7 @@ class OAIControllerListRecordsWithNonExistentIdentityProviderTest
   public function setUp() {
     parent::setUp();
 
-    $this->dispatch('/opac/oai/request?verb=ListRecords&metadataPrefix=oai_dc_bokeh&set=albums&identityProvider=1');
+    $this->dispatch('/opac/oai/request/identity_provider/1?verb=ListRecords&metadataPrefix=oai_dc_bokeh&set=albums');
     $this->_body = $this->_response->getBody();
   }