diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
index 385a2181d84..1e1dc710026 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
@@ -60,8 +60,8 @@ public abstract class AbstractDartCodegen extends DefaultCodegen {
     protected boolean useEnumExtension = false;
     protected String sourceFolder = "src";
     protected String libPath = "lib" + File.separator;
-    protected String apiDocPath = "doc" + File.separator;
-    protected String modelDocPath = "doc" + File.separator;
+    protected String apiDocPath = "doc/";
+    protected String modelDocPath = "doc/";
     protected String apiTestPath = "test" + File.separator;
     protected String modelTestPath = "test" + File.separator;
 
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java
index bfbfea66039..a066a706e9b 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/CSharpClientCodegen.java
@@ -99,8 +99,8 @@ public class CSharpClientCodegen extends AbstractCSharpCodegen {
     protected String packageGuid = "{" + java.util.UUID.randomUUID().toString().toUpperCase(Locale.ROOT) + "}";
     protected String clientPackage = "Client";
     protected String authFolder = "Auth";
-    protected String apiDocPath = "docs" + File.separator;
-    protected String modelDocPath = "docs" + File.separator;
+    protected String apiDocPath = "docs/";
+    protected String modelDocPath = "docs/";
 
     // Defines TargetFrameworkVersion in csproj files
     protected String targetFramework = latestFramework.name;
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
index 0be9e877286..46c140e654f 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
@@ -51,8 +51,8 @@ public class PythonClientCodegen extends AbstractPythonCodegen implements Codege
     public static final String DATE_FORMAT = "dateFormat";
 
     protected String packageUrl;
-    protected String apiDocPath = "docs" + File.separator;
-    protected String modelDocPath = "docs" + File.separator;
+    protected String apiDocPath = "docs/";
+    protected String modelDocPath = "docs/";
     protected boolean useOneOfDiscriminatorLookup = false; // use oneOf discriminator's mapping for model lookup
     protected String datetimeFormat = "%Y-%m-%dT%H:%M:%S.%f%z";
     protected String dateFormat = "%Y-%m-%d";
@@ -236,8 +236,8 @@ public class PythonClientCodegen extends AbstractPythonCodegen implements Codege
             // tests in <package>/test
             testFolder = packagePath() + File.separatorChar + testFolder;
             // api/model docs in <package>/docs
-            apiDocPath = packagePath() + File.separatorChar + apiDocPath;
-            modelDocPath = packagePath() + File.separatorChar + modelDocPath;
+            apiDocPath = packagePath() + "/" + apiDocPath;
+            modelDocPath = packagePath() + "/" + modelDocPath;
         }
         // make api and model doc path available in mustache template
         additionalProperties.put("apiDocPath", apiDocPath);