diff --git a/ChangeLog b/ChangeLog
index 733760b8..73bd90de 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2014-05-07  Rene Liebscher <R.Liebscher@gmx.de>
+
+	bug #42158: Linux GPIO - Source Typo
+	* pindefs.h: fixed typo
+
 2014-04-14  Rene Liebscher <R.Liebscher@gmx.de>
 
 	bug #42056: double free or corruption triggered at exit
diff --git a/pindefs.h b/pindefs.h
index c0607084..a227b681 100644
--- a/pindefs.h
+++ b/pindefs.h
@@ -59,7 +59,7 @@ enum {
 #define PIN_MIN     0   /* smallest allowed pin number */
 #define PIN_MAX     31  /* largest allowed pin number */
 
-#ifdef HAVE_LINUX_GPIO
+#ifdef HAVE_LINUXGPIO
 /* Embedded systems might have a lot more gpio than only 0-31 */
 #undef PIN_MAX
 #define PIN_MAX     255 /* largest allowed pin number */