diff --git a/include/secp256k1.h b/include/secp256k1.h
index b0a03043bf..ddb0f14750 100644
--- a/include/secp256k1.h
+++ b/include/secp256k1.h
@@ -162,15 +162,12 @@ typedef int (*secp256k1_nonce_function)(
    /* Consuming libsecp256k1 as a DLL. */
 #  define SECP256K1_API extern __declspec (dllimport)
 # endif
-#endif
-#ifndef SECP256K1_API
-# if defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD)
-   /* Building libsecp256k1 on non-Windows using GCC or compatible. */
-#  define SECP256K1_API extern __attribute__ ((visibility ("default")))
-# else
-   /* All cases not captured above. */
-#  define SECP256K1_API extern
-# endif
+#elif defined(__GNUC__) && (__GNUC__ >= 4) && defined(SECP256K1_BUILD)
+  /* Building libsecp256k1 on non-Windows using GCC or compatible. */
+# define SECP256K1_API extern __attribute__ ((visibility ("default")))
+#else
+  /* All cases not captured above. */
+# define SECP256K1_API extern
 #endif
 
 /* Warning attributes