diff --git a/nifticdf/nifticdf.h b/nifticdf/nifticdf.h
index 0f2e462..516544d 100644
--- a/nifticdf/nifticdf.h
+++ b/nifticdf/nifticdf.h
@@ -120,7 +120,7 @@ NCDF_API void cdffnc(const int*,double*,double*,double*,double*,double*,double*,
 NCDF_API void cdfgam(const int*,double*,double*,double*,double*,double*,int*,double*);
 #if defined(__COMPILE_UNUSED_FUNCTIONS__)
 NCDF_API void cdfnbn(int*,double*,double*,double*,double*,double*,double*,
-NCDF_API                    int*,double*);
+                     int*,double*);
 NCDF_API void cdfnor(int*,double*,double*,double*,double*,double*,int*,double*);
 #endif /*defined(__COMPILE_UNUSED_FUNCTIONS__)*/
 NCDF_API void cdfpoi(const int*,double*,double*,double*,double*,int*,double*);