diff --git a/configure b/configure
index 8c2715b..62a0f4c 100755
--- a/configure
+++ b/configure
@@ -1,3 +1,4 @@
 #!/bin/bash
 
-sed "s/%VPATH%/`dirname $0`/" `dirname $0`/Makefile.in > Makefile
+SRCDIR="$(cd $(dirname $0) && pwd)"
+sed "s#%VPATH%#${SRCDIR}#" ${SRCDIR}/Makefile.in > Makefile