diff --git a/modules/openapi-generator/src/main/resources/C-libcurl/README.md.mustache b/modules/openapi-generator/src/main/resources/C-libcurl/README.md.mustache
index 2b0a36af119..393d7a5537a 100644
--- a/modules/openapi-generator/src/main/resources/C-libcurl/README.md.mustache
+++ b/modules/openapi-generator/src/main/resources/C-libcurl/README.md.mustache
@@ -90,10 +90,18 @@ Category | Method | HTTP request | Description
 - **API key parameter name**: {{keyParamName}}
 - **Location**: {{#isKeyInQuery}}URL query string{{/isKeyInQuery}}{{#isKeyInHeader}}HTTP header{{/isKeyInHeader}}
 {{/isApiKey}}
-{{#isBasic}}
+{{#isBasicBasic}}
 
 - **Type**: HTTP basic authentication
-{{/isBasic}}
+{{/isBasicBasic}}
+{{#isBasicBearer}}
+
+- **Type**: HTTP Bearer Token authentication{{#bearerFormat}} ({{{.}}}){{/bearerFormat}}
+{{/isBasicBearer}}
+{{#isHttpSignature}}
+
+- **Type**: HTTP signature authentication
+{{/isHttpSignature}}
 {{#isOAuth}}
 
 - **Type**: OAuth
diff --git a/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.c.mustache b/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.c.mustache
index b41561630e3..e5912de027a 100644
--- a/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.c.mustache
+++ b/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.c.mustache
@@ -18,10 +18,10 @@ apiClient_t *apiClient_create() {
     apiClient->response_code = 0;
     {{#hasAuthMethods}}
     {{#authMethods}}
-    {{#isBasic}}
+    {{#isBasicBasic}}
     apiClient->username = NULL;
     apiClient->password = NULL;
-    {{/isBasic}}
+    {{/isBasicBasic}}
     {{#isOAuth}}
     apiClient->accessToken = NULL;
     {{/isOAuth}}
@@ -65,10 +65,10 @@ apiClient_t *apiClient_create_with_base_path(const char *basePath
     apiClient->response_code = 0;
     {{#hasAuthMethods}}
     {{#authMethods}}
-    {{#isBasic}}
+    {{#isBasicBasic}}
     apiClient->username = NULL;
     apiClient->password = NULL;
-    {{/isBasic}}
+    {{/isBasicBasic}}
     {{#isOAuth}}
     apiClient->accessToken = NULL;
     {{/isOAuth}}
@@ -100,14 +100,14 @@ void apiClient_free(apiClient_t *apiClient) {
     apiClient->progress_data = NULL;
     {{#hasAuthMethods}}
     {{#authMethods}}
-    {{#isBasic}}
+    {{#isBasicBasic}}
     if(apiClient->username) {
         free(apiClient->username);
     }
     if(apiClient->password) {
         free(apiClient->password);
     }
-    {{/isBasic}}
+    {{/isBasicBasic}}
     {{#isOAuth}}
     if(apiClient->accessToken) {
         free(apiClient->accessToken);
@@ -487,7 +487,7 @@ void apiClient_invoke(apiClient_t    *apiClient,
 
         {{#hasAuthMethods}}
         {{#authMethods}}
-        {{#isBasic}}
+        {{#isBasicBasic}}
         // this would only be generated for basic authentication:
         char *authenticationToken;
 
@@ -511,7 +511,7 @@ void apiClient_invoke(apiClient_t    *apiClient,
                              CURLOPT_USERPWD,
                              authenticationToken);
         }
-        {{/isBasic}}
+        {{/isBasicBasic}}
         {{#isOAuth}}
         // this would only be generated for OAuth2 authentication
         if(apiClient->accessToken != NULL) {
@@ -548,13 +548,13 @@ void apiClient_invoke(apiClient_t    *apiClient,
         }
         {{#hasAuthMethods}}
         {{#authMethods}}
-        {{#isBasic}}
+        {{#isBasicBasic}}
         if((apiClient->username != NULL) &&
         (apiClient->password != NULL) )
         {
         free(authenticationToken);
         }
-        {{/isBasic}}
+        {{/isBasicBasic}}
         {{/authMethods}}
         {{/hasAuthMethods}}
 
diff --git a/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.h.mustache b/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.h.mustache
index 33ed981b3a5..6c192cdc90a 100644
--- a/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.h.mustache
+++ b/modules/openapi-generator/src/main/resources/C-libcurl/apiClient.h.mustache
@@ -30,10 +30,10 @@ typedef struct apiClient_t {
     long response_code;
     {{#hasAuthMethods}}
     {{#authMethods}}
-    {{#isBasic}}
+    {{#isBasicBasic}}
     char *username;
     char *password;
-    {{/isBasic}}
+    {{/isBasicBasic}}
     {{#isOAuth}}
     char *accessToken;
     {{/isOAuth}}