diff --git a/Makefile b/Makefile
index 5b604e986..b1e11e97c 100644
--- a/Makefile
+++ b/Makefile
@@ -141,13 +141,10 @@ doctest:
 latexdoc texdoc doc:
 	(cd mathics/doc/latex && $(MAKE) doc)
 
-#: Build JSON ASCII to unicode opcode tables
-mathics/data/op-tables.json:
+#: Build JSON ASCII to unicode opcode table and operator table
+mathics/data/op-tables.json mathics/data/operators.json:
 	$(BASH) ./admin-tools/make-op-tables.sh
 
-#: Build JSON ASCII to operator tables
-mathics/data/operators.json:
-	$(BASH) ./admin-tools/make-operator-tables.sh
 
 #: Remove ChangeLog
 rmChangeLog:
diff --git a/admin-tools/make-op-tables.sh b/admin-tools/make-op-tables.sh
index 03c1d0a5d..33c54766d 100755
--- a/admin-tools/make-op-tables.sh
+++ b/admin-tools/make-op-tables.sh
@@ -12,3 +12,4 @@ mathics3-generate-json-table \
     --field=operator-to-ascii \
     --field=operator-to-unicode \
     -o op-tables.json
+mathics3-generate-operator-json-table -o operator-tables.json
diff --git a/admin-tools/make-operator-tables.sh b/admin-tools/make-operator-tables.sh
deleted file mode 100755
index 9ebc6afbf..000000000
--- a/admin-tools/make-operator-tables.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-# Create ASCII operator to Unicode tables
-bs=${BASH_SOURCE[0]}
-mydir=$(dirname $bs)
-PYTHON=${PYTHON:-python}
-
-cd $mydir/../mathics/data
-mathics3-generate-operator-json-table -o operator-tables.json