diff --git a/build/scripts/build_cross_tools b/build/scripts/build_cross_tools
index cb12a34d4d..89da461cbe 100755
--- a/build/scripts/build_cross_tools
+++ b/build/scripts/build_cross_tools
@@ -69,7 +69,8 @@ CFLAGS="-O2" CXXFLAGS="-O2" $buildToolsDir/binutils/configure \
 make || exit 1
 make install || exit 1
 
-export PATH=$PATH:$installDir/bin
+PATH=$PATH:$installDir/bin
+export PATH
 
 
 # build gcc