diff --git a/build.sh b/build.sh
index ffea3fb..c97d514 100755
--- a/build.sh
+++ b/build.sh
@@ -13,14 +13,14 @@ SYSTYPE="${SOLOS}-${SOLVER}"
 
 DISTDIR="${WORLD_ROOT}/dist"
 
-export ${ARCHIE_ROOT}
-export ${PROSPERO_ROOT}
-export ${BERKDB_ROOT}
-export ${TCL_ROOT}
-export ${TCLDP_ROOT}
-export ${TK_ROOT}
-export ${SYSTYPE}
-export ${DISTDIR}
+export ARCHIE_ROOT=${ARCHIE_ROOT}
+export PROSPERO_ROOT=${PROSPERO_ROOT}
+export BERKDB_ROOT=${BERKDB_ROOT}
+export TCL_ROOT=${TCL_ROOT}
+export TCLDP_ROOT=${TCLDP_ROOT}
+export TK_ROOT=${TK_ROOT}
+export SYSTYPE=${SYSTYPE}
+export DISTDIR=${DISTDIR}
 
 mkdir -p ${DISTDIR}/bin