diff --git a/coreapi/help/Doxyfile.in b/coreapi/help/Doxyfile.in
index 6692ba25e..b0230913f 100644
--- a/coreapi/help/Doxyfile.in
+++ b/coreapi/help/Doxyfile.in
@@ -496,7 +496,7 @@ HIDE_IN_BODY_DOCS      = NO
 # will be excluded. Set it to YES to include the internal documentation.
 # The default value is: NO.
 
-INTERNAL_DOCS          = NO
+INTERNAL_DOCS          = YES
 
 # If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
 # names in lower-case letters. If set to YES, upper-case letters are also
diff --git a/coreapi/linphonecore.h b/coreapi/linphonecore.h
index 4a0f357e7..1cc8e084d 100644
--- a/coreapi/linphonecore.h
+++ b/coreapi/linphonecore.h
@@ -3241,11 +3241,13 @@ LINPHONE_PUBLIC void linphone_core_verify_server_certificates(LinphoneCore *lc,
 LINPHONE_PUBLIC void linphone_core_verify_server_cn(LinphoneCore *lc, bool_t yesno);
 LINPHONE_PUBLIC void linphone_core_set_root_ca(LinphoneCore *lc, const char *path);
 /**
+ * @internal
  * Set the pointer to an externally provided ssl configuration for the crypto library
  * @param			lc			#LinphoneCore object
  * @param[in]		ssl_config	A pointer to an opaque structure which will be provided directly to the crypto library used in bctoolbox. Use with extra care.
  * 								This ssl_config structure is responsability of the caller and will not be freed at the connection's end.
  * @ingroup initializing
+ * @endinternal
  */
 LINPHONE_PUBLIC void linphone_core_set_ssl_config(LinphoneCore *lc, void *ssl_config);
 LINPHONE_PUBLIC const char *linphone_core_get_root_ca(LinphoneCore *lc);
diff --git a/tools/genapixml.py b/tools/genapixml.py
index 656428b9e..d03d96f54 100755
--- a/tools/genapixml.py
+++ b/tools/genapixml.py
@@ -498,6 +498,9 @@ class Project:
 			self.add(td)
 
 	def __parseCFunctionMemberdef(self, node):
+		internal = node.find("./detaileddescription/internal")
+		if internal is not None:
+			return None
 		missingDocWarning = ''
 		name = node.find('./name').text
 		t = ''.join(node.find('./type').itertext())
@@ -557,7 +560,8 @@ class Project:
 		memberdefs = tree.findall("./compounddef[@kind='group']/sectiondef[@kind='func']/memberdef[@kind='function'][@prot='public'][@static='no']")
 		for m in memberdefs:
 			f = self.__parseCFunctionMemberdef(m)
-			self.add(f)
+			if f is not None:
+				self.add(f)
 
 	def initFromFiles(self, xmlfiles):
 		trees = []