diff --git a/build-aux/git-hooks/post-commit b/build-aux/git-hooks/post-commit
index 12cae09206a..e02fee48db4 100755
--- a/build-aux/git-hooks/post-commit
+++ b/build-aux/git-hooks/post-commit
@@ -34,7 +34,7 @@
 
 ### Code:
 
-HOOKS_DIR=$(dirname $0)
+HOOKS_DIR=`dirname "$0"`
 
 # Prefer gawk if available, as it handles NUL bytes properly.
 if type gawk >/dev/null 2>&1; then
diff --git a/build-aux/git-hooks/pre-push b/build-aux/git-hooks/pre-push
index 420aae3492b..a342814c1e3 100755
--- a/build-aux/git-hooks/pre-push
+++ b/build-aux/git-hooks/pre-push
@@ -31,7 +31,7 @@
 
 ### Code:
 
-HOOKS_DIR=$(dirname $0)
+HOOKS_DIR=`dirname "$0"`
 
 # Prefer gawk if available, as it handles NUL bytes properly.
 if type gawk >/dev/null 2>&1; then