diff --git a/Makefile.am b/Makefile.am
index 0aa33596..820e2e54 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -43,7 +43,7 @@ debug:
 	$(MAKE) all CFLAGS="" AM_CPPFLAGS="-ggdb -DDEBUG"
 
 .c.h:
-	scripts/MakeHeader.py $<
+	@srcdir@/scripts/MakeHeader.py $<
 
 cppcheck:
 	cppcheck -q -v . --enable=all -DHAVE_CGROUP -DHAVE_OPENVZ -DHAVE_TASKSTATS
diff --git a/scripts/MakeHeader.py b/scripts/MakeHeader.py
index 55eeed45..c0fdc851 100755
--- a/scripts/MakeHeader.py
+++ b/scripts/MakeHeader.py
@@ -28,8 +28,8 @@ selfheader = '#include "' + name + '.h"'
 out.write( "/* Do not edit this file. It was automatically generated. */" )
 out.write( "" )
 
-out.write( "#ifndef HEADER_" + name )
-out.write( "#define HEADER_" + name )
+out.write( "#ifndef HEADER_" + os.path.basename(name) )
+out.write( "#define HEADER_" + os.path.basename(name) )
 is_blank = False
 for line in file.readlines():
    line = line[:-1]