diff --git a/src/mod/applications/mod_avmd/avmd_desa2_tweaked.c b/src/mod/applications/mod_avmd/avmd_desa2_tweaked.c
index e8ce34a946..2d6aeab006 100644
--- a/src/mod/applications/mod_avmd/avmd_desa2_tweaked.c
+++ b/src/mod/applications/mod_avmd/avmd_desa2_tweaked.c
@@ -15,6 +15,11 @@
     #include <float.h>
     #define ISNAN(x) (!!(_isnan(x)))
     #define ISINF(x) (isinf(x))
+#else
+    int __isnan(double);
+	int __isinf(double);
+    #define ISNAN(x) (__isnan(x))
+    #define ISINF(x) (__isinf(x))
 #endif
 
 #include "avmd_buffer.h"