diff --git a/include/stdlib.h b/include/stdlib.h
index d4a9ef7cc..6f96f2bad 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -89,8 +89,8 @@ void* __fastcall__ bsearch (const void* key, const void* base, size_t n,
 div_t __fastcall__ div (int numer, int denom);
 void __fastcall__ exit (int ret);
 char* __fastcall__ getenv (const char* name);
-void qsort (void* base, size_t count, size_t size,
-	    int (*compare) (const void*, const void*));
+void __fastcall__ qsort (void* base, size_t count, size_t size,
+	                 int (*compare) (const void*, const void*));
 int system (const char* s);
 
 /* Non-ANSI functions */
diff --git a/libsrc/common/qsort.c b/libsrc/common/qsort.c
index 88da4b28a..0cdfeb82c 100644
--- a/libsrc/common/qsort.c
+++ b/libsrc/common/qsort.c
@@ -53,8 +53,8 @@ static void QuickSort (void* Base, int Lo, int Hi, size_t Size,
 
 
 
-void qsort (void* base, size_t nmemb, size_t size,
-	    int (*compare)(const void*, const void*))
+void __fastcall__ qsort (void* base, size_t nmemb, size_t size,
+	                 int (*compare)(const void*, const void*))
 /* Quicksort implementation */
 {
     if (nmemb > 1) {