diff --git a/make-lib.sh b/make-lib.sh
index 068e643f4d6a48645a66e1ba6510fbe70ebc3e53..3f787b44ac3fa7db4497be7a078500d6c7ca761f 100755
--- a/make-lib.sh
+++ b/make-lib.sh
@@ -3,7 +3,7 @@
 # Build static library of Keystone Engine
 # syntax: make-lib.sh [debug] [macos-universal]
 
-function usage()
+usage()
 {
   echo ""
   echo "Syntax:  make-lib.sh [debug] [macos-universal]"
diff --git a/make-share.sh b/make-share.sh
index 644bd28e9c757fecd2e11af8eb4e37528f1cff7a..b33c55001dfc0db47b0a08ef40c9dda4ce6a6a1d 100755
--- a/make-share.sh
+++ b/make-share.sh
@@ -3,7 +3,7 @@
 # Build shared library of Keystone Engine
 # syntax: make-share.sh [debug] [macos-universal]
 
-function usage()
+usage()
 {
   echo ""
   echo "Syntax:  make-share.sh [debug] [macos-universal]"