diff --git a/scripts/parse-config b/scripts/parse-config
index 853074315..6817a627e 100644
--- a/scripts/parse-config
+++ b/scripts/parse-config
@@ -97,6 +97,7 @@ export BUILDCXX="c++" BUILD_CXX="c++" HOSTCXX="c++" HOST_CXX="c++"
 
 unset CPP ARFLAGS ASFLAGS CFLAGS CXXFLAGS CPPFLAGS FFLAGS LDFLAGS 
 unset LD_LIBRARY_PATH LD_PRELOAD FLWRAPPER C_INCLUDE_PATH CONFIG_SITE
+unset DISPLAY
 
 export STRIP_WRAPPER_MYPATH="$base/build/$ROCKCFG_ID/$toolsdir/wrapper"
 export STRIP_WRAPPER_NOLOOP=0