diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/DartClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/DartClientCodegen.java
index cb2547b67a0..70b98676ab3 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/DartClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/DartClientCodegen.java
@@ -52,9 +52,8 @@ public class DartClientCodegen extends DefaultCodegen implements CodegenConfig {
                 Arrays.asList(
                         "String",
                         "bool",
-                        "num",
                         "int",
-                        "float")
+                        "double")
         );
         instantiationTypes.put("array", "List");
         instantiationTypes.put("map", "Map");
@@ -66,11 +65,11 @@ public class DartClientCodegen extends DefaultCodegen implements CodegenConfig {
         typeMapping.put("boolean", "bool");
         typeMapping.put("string", "String");
         typeMapping.put("int", "int");
-        typeMapping.put("float", "num");
+        typeMapping.put("float", "double");
         typeMapping.put("long", "int");
         typeMapping.put("short", "int");
         typeMapping.put("char", "String");
-        typeMapping.put("double", "num");
+        typeMapping.put("double", "double");
         typeMapping.put("object", "Object");
         typeMapping.put("integer", "int");
         typeMapping.put("Date", "DateTime");