diff --git a/configure.ac b/configure.ac
index f807bf215594a..5c9bd3276b211 100644
--- a/configure.ac
+++ b/configure.ac
@@ -398,7 +398,6 @@ grp.h \
 ieeefp.h \
 langinfo.h \
 linux/sock_diag.h \
-malloc.h \
 os/signpost.h \
 poll.h \
 pty.h \
diff --git a/ext/gd/libgd/gdcache.h b/ext/gd/libgd/gdcache.h
index 07b11bd7e2224..dd262e3e98dab 100644
--- a/ext/gd/libgd/gdcache.h
+++ b/ext/gd/libgd/gdcache.h
@@ -41,9 +41,6 @@
 /*********************************************************/
 
 #include <stdlib.h>
-#if (!defined(__OpenBSD__)) && defined(HAVE_MALLOC_H)
- #include <malloc.h>
-#endif
 #ifndef NULL
 #define NULL (void *)0
 #endif