diff --git a/sh/core/code.awk b/sh/core/code.awk
index e274a2b..06e248c 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -179,15 +179,17 @@ BEGIN {
                 match_command = 1
             }
         # set
-        } else if (match($0, re["constant"], m)) {
-            if (m[1] == target) {
-                output(m[1], "constant")
+        } else if (match($0, re["constant"])) {
+            matched = extract($0, "constant")
+            if (matched == target) {
+                output(matched, "constant")
             } else {
                 reset()
             }
-        } else if (match($0, re["variable"], m)) {
-            if (m[1] == target) {
-                output(m[1], "variable")
+        } else if (match($0, re["variable"])) {
+            matched = extract($0, "variable")
+            if (matched == target) {
+                output(matched, "variable")
             } else {
                 reset()
             }