diff --git a/src/pixz.c b/src/pixz.c
index 0e1ed83..0e67773 100644
--- a/src/pixz.c
+++ b/src/pixz.c
@@ -1,7 +1,3 @@
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
 #include "pixz.h"
 #include <errno.h>
 #include <fcntl.h>
diff --git a/src/pixz.h b/src/pixz.h
index 298c7e2..0fa60f2 100644
--- a/src/pixz.h
+++ b/src/pixz.h
@@ -1,3 +1,7 @@
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
 #include <lzma.h>
 
 #define __USE_LARGEFILE 1