diff --git a/meta/classes/binconfig.bbclass b/meta/classes/binconfig.bbclass
index 8e22d2d..3deb541 100644
--- a/meta/classes/binconfig.bbclass
+++ b/meta/classes/binconfig.bbclass
@@ -6,8 +6,8 @@ def get_binconfig_mangle(d):
 		s += " -e 's:=%s${libdir}:=\\1OELIBDIR:;'" % optional_quote
 		s += " -e 's:=%s${includedir}:=\\1OEINCDIR:;'" % optional_quote
 		s += " -e 's:=%s${datadir}:=\\1OEDATADIR:'" % optional_quote
-		s += " -e 's:=%s${prefix}:=\\1OEPREFIX:'" % optional_quote
-		s += " -e 's:=%s${exec_prefix}:=\\1OEEXECPREFIX:'" % optional_quote
+		s += " -e 's:=%s${prefix}/:=\\1OEPREFIX/:'" % optional_quote
+		s += " -e 's:=%s${exec_prefix}/:=\\1OEEXECPREFIX/:'" % optional_quote
 		s += " -e 's:-L${libdir}:-LOELIBDIR:;'"
 		s += " -e 's:-I${includedir}:-IOEINCDIR:;'"
 		s += " -e 's:OELIBDIR:${STAGING_LIBDIR}:;'"