diff --git a/check/common b/check/common
index 57aa806..5d1ae15 100644
--- a/check/common
+++ b/check/common
@@ -8,8 +8,9 @@ pkgconfig=../pkg-config
 
 . ./config.sh
 
-PKG_CONFIG_PATH=$srcdir
-export PKG_CONFIG_PATH
+unset PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR=$srcdir
+export PKG_CONFIG_LIBDIR
 export LC_ALL=C
 
 run_test () {