diff --git a/Makefile.in b/Makefile.in
index 8819f35..a934019 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -9,7 +9,7 @@ WESTMERE = @HAVE_WESTMERE@
 HASWELL = @HAVE_HASWELL@
 
 CC = @CC@
-CPPFLAGS = @CPPFLAGS@ -Iinclude -I$(SOURCE)/include -I$(SOURCE)/src -Isimdzone/include -I.
+CPPFLAGS = @CPPFLAGS@ -Iinclude -I$(SOURCE)/include -I$(SOURCE)/src -I.
 CFLAGS = @CFLAGS@
 DEPFLAGS = @DEPFLAGS@
 VPATH = @srcdir@