diff --git a/Allwmake b/Allwmake
index ee6f075a0e880042b121e1dc84239af89d77d5eb..8680f31d990e3287ef08c66eca6310581892049e 100755
--- a/Allwmake
+++ b/Allwmake
@@ -13,7 +13,7 @@ fi
 ( cd wmake/src && make )
 
 # build ThirdParty sources
-$WM_THIRD_PARTY_DIR/Allwmake
+( cd $WM_THIRD_PARTY_DIR && ./Allwmake )
 
 # build OpenFOAM libraries and applications
 src/Allwmake