diff --git a/textview.go b/textview.go
index adb74aa..6b97f74 100644
--- a/textview.go
+++ b/textview.go
@@ -32,3 +32,8 @@ func (textview *TextView) SetText(text string) {
 	defer C.free(unsafe.Pointer(cText))
 	C.TextView_SetText(textview.textViewPtr, cText)
 }
+
+// SetText sets the text of the text view
+func (textview *TextView) SetFontSize(size int) {
+	C.TextView_SetFontSize(textview.textViewPtr, C.int(size))
+}
diff --git a/textview.h b/textview.h
index de5c3b6..613b5f5 100644
--- a/textview.h
+++ b/textview.h
@@ -4,11 +4,12 @@
 
 @interface TextViewHandler : NSObject
 
-@property (assign) int goTextViewId;
+@property(assign) int goTextViewId;
 
 @end
 
-typedef void* TextViewPtr;
+typedef void *TextViewPtr;
 
 TextViewPtr TextView_New(int goTextViewId, int x, int y, int w, int h);
-void TextView_SetText(TextViewPtr textViewPtr, const char* text);
+void TextView_SetText(TextViewPtr textViewPtr, const char *text);
+void TextView_SetFontSize(TextViewPtr textViewPtr, int size);
diff --git a/textview.m b/textview.m
index b300da1..fdbf2fe 100644
--- a/textview.m
+++ b/textview.m
@@ -15,3 +15,9 @@ void TextView_SetText(TextViewPtr textViewPtr, const char* text) {
 	NSTextView* tv = (NSTextView*)textViewPtr;
 	[tv setString:[NSString stringWithUTF8String:text]];
 }
+
+void TextView_SetFontSize(TextViewPtr textViewPtr, int size) {
+	NSTextView* tv = (NSTextView*)textViewPtr;
+	NSFont* font = [NSFont fontWithName:@"Helvetica" size:size];
+	[tv setFont:font];
+}