diff --git a/README.md b/README.md
index 2ce259a..78846bd 100644
--- a/README.md
+++ b/README.md
@@ -1051,7 +1051,7 @@ value
 
 ```shell
 $ var="world"
-$ declare hello_$var=value
+$ declare "hello_$var=value"
 $ printf '%s\n' "$hello_world"
 value
 ```
diff --git a/manuscript/chapter6.txt b/manuscript/chapter6.txt
index cd2a01e..88e4b08 100644
--- a/manuscript/chapter6.txt
+++ b/manuscript/chapter6.txt
@@ -21,7 +21,7 @@ $ hello_world="value"
 $ var="world"
 
 # Declare a nameref.
-$ declare -n ref=hello_$var
+$ declare -n "ref=hello_$var"
 
 $ printf '%s\n' "$ref"
 value