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-rw-r--r--Src/params.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/Src/params.c b/Src/params.c
index a722a20f6..fce3af940 100644
--- a/Src/params.c
+++ b/Src/params.c
@@ -6348,6 +6348,8 @@ valid_refname(char *val)
 {
     char *t = itype_end(val, INAMESPC, 0);
 
+    if (idigit(*val))
+	return 0;
     if (*t != 0) {
 	if (*t == '[') {
 	    tokenize(t = dupstring(t+1));