diff --git a/src/config.h b/src/config.h
index 546ab1fc9..c1f43163e 100644
--- a/src/config.h
+++ b/src/config.h
@@ -24,14 +24,6 @@
 
 
 
-/****                      ****
- ** The Eressea boolean type **
- ****                      ****/
-
-typedef int boolean;
-#define false ((boolean)0)
-#define true ((boolean)!false)
-
 
 
 /****                 ****
@@ -57,6 +49,12 @@ typedef int boolean;
 # include <dmalloc.h>
 #endif
 
+#if defined(__GCC__)
+# include <stdbool.h>
+# define HAS_BOOLEAN
+# define boolean bool
+#endif
+
 #if defined(_DEBUG) && defined(_MSC_VER)
 # ifndef MALLOCDBG
 #  define MALLOCDBG 1
@@ -232,4 +230,14 @@ extern char * strdup(const char *s);
 
 #define unused(var) var = var
 
+
+/****                      ****
+ ** The Eressea boolean type **
+ ****                      ****/
+#ifndef HAS_BOOLEAN
+  typedef int boolean;
+# define false ((boolean)0)
+# define true ((boolean)!false)
+#endif
+
 #endif