diff --git a/shell/alias/git.sh b/shell/alias/git.sh
index 4044fa8..801df15 100644
--- a/shell/alias/git.sh
+++ b/shell/alias/git.sh
@@ -225,18 +225,17 @@ gfp() {
 }
 
 # garbage collect all orphan commits
-alias ggc="\
-git \
-reflog \
-expire \
---all \
---expire \"all\" \
-; \
-git \
-gc \
---aggressive \
---prune=\"now\" \
-"
+ggc() {
+	git \
+		reflog \
+		expire \
+		--all \
+		--expire "all" &&
+		git \
+			gc \
+			--aggressive \
+			--prune="now"
+}
 
 # initialize a new repository
 alias gi="\