diff --git a/config.h.cmake.in b/config.h.cmake.in
index 2cdfdcc3a..effca2a5c 100644
--- a/config.h.cmake.in
+++ b/config.h.cmake.in
@@ -184,9 +184,6 @@ don't. */
 /* Define to 1 if you have the <lzo1x.h> header file. */
 #define HAVE_LZO1X_H 1
 
-/* Define to 1 if you have the <lzoutil.h> header file. */
-#define HAVE_LZOUTIL_H 1
-
 /* Define to 1 if you have the `mlockall' function. */
 #cmakedefine HAVE_MLOCKALL
 
diff --git a/configure.ac b/configure.ac
index 965ed1a38..2e5ab6a65 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1160,15 +1160,6 @@ fi
 if test "${have_lzo}" = "yes"; then
 	saved_CFLAGS="${CFLAGS}"
 	CFLAGS="${CFLAGS} ${LZO_CFLAGS}"
-	AC_CHECK_HEADERS(
-		[lzo/lzoutil.h],
-		,
-		[AC_CHECK_HEADERS(
-			[lzoutil.h],
-			,
-			[AC_MSG_ERROR([lzoutil.h is missing])]
-		)]
-	)
 	AC_CHECK_HEADERS(
 		[lzo/lzo1x.h],
 		,
diff --git a/src/openvpn/lzo.c b/src/openvpn/lzo.c
index b313284df..bab2d7828 100644
--- a/src/openvpn/lzo.c
+++ b/src/openvpn/lzo.c
@@ -107,14 +107,14 @@ lzo_compress_init(struct compress_context *compctx)
     {
         msg(M_FATAL, "Cannot initialize LZO compression library (lzo_init() returns %d)", lzo_status);
     }
-    compctx->wu.lzo.wmem = (lzo_voidp) lzo_malloc(compctx->wu.lzo.wmem_size);
+    compctx->wu.lzo.wmem = (lzo_voidp) malloc(compctx->wu.lzo.wmem_size);
     check_malloc_return(compctx->wu.lzo.wmem);
 }
 
 static void
 lzo_compress_uninit(struct compress_context *compctx)
 {
-    lzo_free(compctx->wu.lzo.wmem);
+    free(compctx->wu.lzo.wmem);
     compctx->wu.lzo.wmem = NULL;
 }
 
diff --git a/src/openvpn/lzo.h b/src/openvpn/lzo.h
index e951b49bb..62d73a1b3 100644
--- a/src/openvpn/lzo.h
+++ b/src/openvpn/lzo.h
@@ -40,16 +40,11 @@
 #if defined(HAVE_LZO_CONF_H)
 /* The lzo.h magic gets confused and still wants
  * to include lzo/lzoconf.h even if our include paths
- * are setup to include the paths without lzo/ include lzoconf.h to
- * avoid it being include by lzoutil.h */
+ * are setup to include the paths without lzo/
+ */
 #include <lzodefs.h>
 #include <lzoconf.h>
 #endif
-#if defined(HAVE_LZO_LZOUTIL_H)
-#include <lzo/lzoutil.h>
-#elif defined(HAVE_LZOUTIL_H)
-#include <lzoutil.h>
-#endif
 #if defined(HAVE_LZO_LZO1X_H)
 #include <lzo/lzo1x.h>
 #elif defined(HAVE_LZO1X_H)