diff --git a/include/curl/curl.h b/include/curl/curl.h
index 95d479c92..7ce4ff87e 100644
--- a/include/curl/curl.h
+++ b/include/curl/curl.h
@@ -450,10 +450,10 @@ typedef enum {
 
    NOTE: they return TRUE if the strings match *case insensitively*.
  */
-extern int (Curl_strequal)(const char *s1, const char *s2);
-extern int (Curl_strnequal)(const char *s1, const char *s2, size_t n);
-#define strequal(a,b) Curl_strequal(a,b)
-#define strnequal(a,b,c) Curl_strnequal(a,b,c)
+extern int (curl_strequal)(const char *s1, const char *s2);
+extern int (curl_strnequal)(const char *s1, const char *s2, size_t n);
+#define strequal(a,b) curl_strequal(a,b)
+#define strnequal(a,b,c) curl_strnequal(a,b,c)
 
 /* external form function */
 int curl_formparse(char *string,