diff --git a/publisher/product/ontology/build.sh b/publisher/product/ontology/build.sh
index ade66a41..35a2ad49 100644
--- a/publisher/product/ontology/build.sh
+++ b/publisher/product/ontology/build.sh
@@ -788,7 +788,7 @@ function createQuickVersions() {
   log "Merging all dev ontologies into one RDF file"
 
   ${ONTOVIEWER_TOOLKIT_JAVA} \
-    --Xmx16G \
+    -Xmx16G \
     --goal merge-imports \
     --data "${source_family_root}/${DEV_SPEC}" $(test -s "${source_family_root}/catalog-v001.xml" && echo "--ontology-mapping \"${source_family_root}/catalog-v001.xml\"") \
     --ontology-iri "${product_root_url}/Quick${ONTPUB_FAMILY^^}Dev/" --ontology-version-iri "${tag_root_url}/Quick${ONTPUB_FAMILY^^}Dev/" \
@@ -800,7 +800,7 @@ function createQuickVersions() {
   log "Merging all prod ontologies into one RDF file"
   ${ONTOVIEWER_TOOLKIT_JAVA} \
     --goal merge-imports \
-    --Xmx16G \
+    -Xmx16G \
     --data "${source_family_root}/${PROD_SPEC}" $(test -s "${source_family_root}/catalog-v001.xml" && echo "--ontology-mapping \"${source_family_root}/catalog-v001.xml\"") \
     --ontology-iri "${product_root_url}/Quick${ONTPUB_FAMILY^^}Prod/" --ontology-version-iri "${tag_root_url}/Quick${ONTPUB_FAMILY^^}Prod/" \
     --output "${tag_root}/Quick${ONTPUB_FAMILY^^}Prod.rdf" &>/dev/null