diff --git a/VERSION b/VERSION
index 9e0be425..d2da60ef 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.620
+8.3.621
diff --git a/ext2spice/ext2spice.c b/ext2spice/ext2spice.c
index b116d480..ea00d46b 100644
--- a/ext2spice/ext2spice.c
+++ b/ext2spice/ext2spice.c
@@ -3140,6 +3140,7 @@ spcdevVisit(
 
 	    if (!has_model)
 	    {
+		fprintf(esSpiceF, " ");
 		esSIvalue(esSpiceF, 1.0E-15 * (double)sdM * (double)dev->dev_cap);
 		spcWriteParams(dev, hierName, scale, l, w, sdM, FALSE);
 	    }
@@ -3186,6 +3187,7 @@ spcdevVisit(
 
 	    if (!has_model)
 	    {
+		fprintf(esSpiceF, " ");
 		esSIvalue(esSpiceF, 1.0E-15 * (double)sdM * (double)dev->dev_cap);
 		spcWriteParams(dev, hierName, scale, l, w, sdM, FALSE);
 	    }