diff --git a/modules/openapi-generator-cli/src/main/java/org/openapitools/codegen/cmd/Generate.java b/modules/openapi-generator-cli/src/main/java/org/openapitools/codegen/cmd/Generate.java
index de331cde1ea..5e6f106e1bc 100644
--- a/modules/openapi-generator-cli/src/main/java/org/openapitools/codegen/cmd/Generate.java
+++ b/modules/openapi-generator-cli/src/main/java/org/openapitools/codegen/cmd/Generate.java
@@ -80,10 +80,10 @@ public class Generate implements Runnable {
     @Option(
             name = {"-c", "--config"},
             title = "configuration file",
-            description = "Path to configuration file configuration file. It can be json or yaml."
-                    + "If file is json, the content should have the format {\"optionKey\":\"optionValue\", \"optionKey1\":\"optionValue1\"...}."
-                    + "If file is yaml, the content should have the format optionKey: optionValue"
-                    + "Supported options can be different for each language. Run config-help -g {generator name} command for language specific config options.")
+            description = "Path to configuration file. It can be JSON or YAML. "
+                    + "If file is JSON, the content should have the format {\"optionKey\":\"optionValue\", \"optionKey1\":\"optionValue1\"...}. "
+                    + "If file is YAML, the content should have the format optionKey: optionValue. "
+                    + "Supported options can be different for each language. Run config-help -g {generator name} command for language-specific config options.")
     private String configFile;
 
     @Option(name = {"-s", "--skip-overwrite"}, title = "skip overwrite",