1 files changed, 2 insertions, 2 deletions
diff --git a/FL/Fl.H b/FL/Fl.H
index 31d230da6..3a9b4bc1d 100644
--- a/FL/Fl.H
+++ b/FL/Fl.H
@@ -31,7 +31,7 @@
 #include <FL/core/pen_events.H>       // pen and tablet events
 #include <FL/Fl_Widget_Tracker.H>     // historically included here
 
-#ifdef FLTK_HAVE_CAIRO
+#if FLTK_HAVE_CAIRO
 # include <FL/Fl_Cairo.H>
 #endif
 
@@ -738,7 +738,7 @@ FL_EXPORT extern int system(const char *command);
 // Convert Windows commandline arguments to UTF-8 (documented in src/Fl.cxx)
 FL_EXPORT extern int args_to_utf8(int argc, char ** &argv);
 
-#ifdef FLTK_HAVE_CAIRO
+#if FLTK_HAVE_CAIRO
 /** \defgroup group_cairo Cairo Support Functions and Classes
     @{
 */