diff --git a/RunSettings.go b/RunSettings.go
index c1330fb..9ef0f72 100644
--- a/RunSettings.go
+++ b/RunSettings.go
@@ -25,6 +25,7 @@ type RunSettings struct {
 	addRegistry   bool
 	showRegistry  bool
 	forceGenerate GenerateMode
+	blankParameters bool
 
 	flagList	  bool
 }
@@ -44,6 +45,7 @@ var FLAGS = []string{
 	"-l",
 	"-f",
 	"-w",
+	"-b",
 	"-bu",
 	"-bp",
 	"-flags",
@@ -67,6 +69,7 @@ func FindRunSettings() (RunSettings, error) {
 	flag.BoolVar(&ret.showRegistry, "l", false, "Whether or not to show a list of all available registered templates")
 	flag.BoolVar(&forceGenerate, "f", false, "Whether or not to overwrite existing files during generation")
 	flag.BoolVar(&forceDelete, "d", false, "Whether or not to delete every existing file in the output path first (only valid when -f is specified)")
+	flag.BoolVar(&ret.blankParameters, "b", false, "Whether or not to replace unspecified parameters with blank strings")
 	flag.BoolVar(&ret.flagList, "flags", false, "Whether or not to list the flags")
 	flag.Parse()
 
diff --git a/main.go b/main.go
index 54d3fb8..2968cde 100644
--- a/main.go
+++ b/main.go
@@ -134,20 +134,24 @@ func createProject(settings RunSettings, registry *TemplateRegistry) {
 		return
 	}
 
-	// if there's a post-generate script (and it's executable), call it.
-	err = executePostGenerate(project.rootDirectory, settings.targetPath)
-	if err != nil {
-		exitWith("Unable to complete post-generation script: %s\n", err, 1)
-		return
-	}
-
 	// if everything succeeded, but we had missing parameters, make a note of it to the user.
 	if project.missingParameters.Length() > 0 {
-		fmt.Printf("Project generated, but some parameters were not specified, and have been left blank:\n")
+
+		if(settings.blankParameters) {
+
+			// if blank parameters are allowed, print a message about how blank parameters were used.
+			fmt.Printf("Project generated, but some parameters were not specified, and have been left blank:\n")
+		} else {
+
+			// if blank parameters are not allowed, delete the generated project.
+			fmt.Printf("Project cannot be generated, some parameters were not specified:\n")
+			os.RemoveAll(settings.targetPath)
+		}
 
 		for _, value := range project.missingParameters.GetSlice() {
 			fmt.Println(value)
 		}
+		return
 	}
 
 	if project.incorrectParameters.Length() > 0 {
@@ -159,6 +163,13 @@ func createProject(settings RunSettings, registry *TemplateRegistry) {
 			fmt.Println(value)
 		}
 	}
+
+	// if there's a post-generate script (and it's executable), call it.
+	err = executePostGenerate(project.rootDirectory, settings.targetPath)
+	if err != nil {
+		exitWith("Unable to complete post-generation script: %s\n", err, 1)
+		return
+	}
 }
 
 func exitWith(message string, err error, code int) {