diff --git a/configure.ac b/configure.ac
index 5904e95362..d4ec937415 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1268,10 +1268,10 @@ AG_GST_CHECK_FEATURE(SOUNDTOUCH, [soundtouch plug-in], soundtouch, [
     [PKG_CHECK_MODULES(SOUNDTOUCH, soundtouch-1.0,
       [HAVE_SOUNDTOUCH=yes
         HAVE_SOUNDTOUCH_1_4=no
-        SOUNDTOUCH_LIBS=$"SOUNDTOUCH_LIBS -lBPM"], 
+        SOUNDTOUCH_LIBS="$SOUNDTOUCH_LIBS -lBPM"], 
       [PKG_CHECK_MODULES(SOUNDTOUCH, libSoundTouch,
         HAVE_SOUNDTOUCH=yes
-        SOUNDTOUCH_LIBS=$"SOUNDTOUCH_LIBS -lBPM", 
+        SOUNDTOUCH_LIBS="$SOUNDTOUCH_LIBS -lBPM", 
         HAVE_SOUNDTOUCH=no)])])
   AC_SUBST(SOUNDTOUCH_CFLAGS)
   AC_SUBST(SOUNDTOUCH_LIBS)