diff --git a/modules/openapi-generator/src/main/resources/rust-axum/models.mustache b/modules/openapi-generator/src/main/resources/rust-axum/models.mustache
index 13e4fb5b7307..56173f1fb043 100644
--- a/modules/openapi-generator/src/main/resources/rust-axum/models.mustache
+++ b/modules/openapi-generator/src/main/resources/rust-axum/models.mustache
@@ -630,7 +630,7 @@ impl std::convert::From<{{{dataType}}}> for {{{classname}}} {
 
 impl std::fmt::Display for {{{classname}}} {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-       write!(f, "{:?}", self.0)
+       write!(f, "{}", self.0)
     }
 }
 
diff --git a/samples/server/petstore/rust-axum/output/openapi-v3/src/models.rs b/samples/server/petstore/rust-axum/output/openapi-v3/src/models.rs
index 488de21a23d4..5f05dcdc3798 100644
--- a/samples/server/petstore/rust-axum/output/openapi-v3/src/models.rs
+++ b/samples/server/petstore/rust-axum/output/openapi-v3/src/models.rs
@@ -611,7 +611,7 @@ impl std::convert::From<String> for AnotherXmlInner {
 
 impl std::fmt::Display for AnotherXmlInner {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -1255,7 +1255,7 @@ impl std::convert::From<String> for Err {
 
 impl std::fmt::Display for Err {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -1303,7 +1303,7 @@ impl std::convert::From<String> for Error {
 
 impl std::fmt::Display for Error {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -1833,7 +1833,7 @@ impl std::convert::From<String> for NullableObject {
 
 impl std::fmt::Display for NullableObject {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -2809,7 +2809,7 @@ impl std::convert::From<String> for Ok {
 
 impl std::fmt::Display for Ok {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -2966,7 +2966,7 @@ impl std::convert::From<String> for Result {
 
 impl std::fmt::Display for Result {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -3057,7 +3057,7 @@ impl std::convert::From<String> for StringObject {
 
 impl std::fmt::Display for StringObject {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
@@ -3282,7 +3282,7 @@ impl std::convert::From<String> for XmlInner {
 
 impl std::fmt::Display for XmlInner {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
diff --git a/samples/server/petstore/rust-axum/output/petstore-with-fake-endpoints-models-for-testing/src/models.rs b/samples/server/petstore/rust-axum/output/petstore-with-fake-endpoints-models-for-testing/src/models.rs
index 31bf9954fdbd..47907ceb42da 100644
--- a/samples/server/petstore/rust-axum/output/petstore-with-fake-endpoints-models-for-testing/src/models.rs
+++ b/samples/server/petstore/rust-axum/output/petstore-with-fake-endpoints-models-for-testing/src/models.rs
@@ -4909,7 +4909,7 @@ impl std::convert::From<String> for OuterString {
 
 impl std::fmt::Display for OuterString {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }
 
diff --git a/samples/server/petstore/rust-axum/output/rust-axum-validation-test/src/models.rs b/samples/server/petstore/rust-axum/output/rust-axum-validation-test/src/models.rs
index a26c186e5743..229b571c986e 100644
--- a/samples/server/petstore/rust-axum/output/rust-axum-validation-test/src/models.rs
+++ b/samples/server/petstore/rust-axum/output/rust-axum-validation-test/src/models.rs
@@ -86,7 +86,7 @@ impl std::convert::From<String> for Email {
 
 impl std::fmt::Display for Email {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{:?}", self.0)
+        write!(f, "{}", self.0)
     }
 }