diff --git a/abuild.in b/abuild.in
index 9b40c35..b09e365 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1333,7 +1333,7 @@ scan_pkgconfig_depends() {
 human_size() {
 	awk '{  split("B KB MB GB TB PB", type)
 		for(i=5; y < 1 && $1 > 0; i--)
-			y = $1 / (2**(10*i))
+			y = $1 / (2^(10*i))
 		printf("%.1f %s\n", y, type[i+2]) }'
 }