diff --git a/Allwmake b/Allwmake
index ee6f075a0e..8680f31d99 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