diff --git a/include/notcurses/direct.h b/include/notcurses/direct.h
index 5447baffe..54b2bc7cc 100644
--- a/include/notcurses/direct.h
+++ b/include/notcurses/direct.h
@@ -7,6 +7,13 @@
 extern "C" {
 #endif
 
+#ifndef __MINGW64__
+#define API __attribute__((visibility("default")))
+#else
+#define API __declspec(dllexport)
+#endif
+#define ALLOC __attribute__((malloc)) __attribute__((warn_unused_result))
+
 // ncdirect_init() will call setlocale() to inspect the current locale. If
 // that locale is "C" or "POSIX", it will call setlocale(LC_ALL, "") to set
 // the locale according to the LANG environment variable. Ideally, this will
@@ -489,6 +496,9 @@ ncdirect_canbraille(const struct ncdirect* nc){
 API bool ncdirect_canget_cursor(const struct ncdirect* nc)
   __attribute__ ((nonnull (1)));
 
+#undef API
+#undef ALLOC
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/notcurses/ncport.h b/include/notcurses/ncport.h
index 37bdb7a9e..d34daaa35 100644
--- a/include/notcurses/ncport.h
+++ b/include/notcurses/ncport.h
@@ -12,7 +12,6 @@ extern "C" {
 
 #ifndef __MINGW64__                               // All but Windows
 #include <netinet/in.h>
-#define API __attribute__((visibility("default")))
 #endif
 
 #if defined(__linux__)                            // Linux
@@ -32,14 +31,11 @@ extern "C" {
 #define wcwidth(w) 1 // FIXME lol, no
 #define wcswidth(w, s) (int)(wcslen(w)) // FIXME lol, no
 #define htole(x) (x) // FIXME are all windows installs LE? ugh
-#define API __declspec(dllexport)
 #else                                             // BSDs
 #include <sys/endian.h>
 #define htole(x) (bswap32(htonl(x)))
 #endif
 
-#define ALLOC __attribute__((malloc)) __attribute__((warn_unused_result))
-
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/include/notcurses/notcurses.h b/include/notcurses/notcurses.h
index 0a0a0db74..cdc7cd785 100644
--- a/include/notcurses/notcurses.h
+++ b/include/notcurses/notcurses.h
@@ -23,6 +23,13 @@ extern "C" {
 #define RESTRICT restrict
 #endif
 
+#ifndef __MINGW64__
+#define API __attribute__((visibility("default")))
+#else
+#define API __declspec(dllexport)
+#endif
+#define ALLOC __attribute__((malloc)) __attribute__((warn_unused_result))
+
 // Get a human-readable string describing the running Notcurses version.
 API const char* notcurses_version(void);
 // Cannot be inline, as we want to get the versions of the actual Notcurses
@@ -4129,6 +4136,9 @@ API uint32_t ncdirect_getc(struct ncdirect* nc, const struct timespec *ts,
                            const void* unused, ncinput* ni)
   __attribute__ ((nonnull (1))) __attribute__ ((deprecated));
 
+#undef API
+#undef ALLOC
+
 #ifdef __cplusplus
 } // extern "C"
 #endif
diff --git a/src/lib/internal.h b/src/lib/internal.h
index 07e7861fd..831e9ccc5 100644
--- a/src/lib/internal.h
+++ b/src/lib/internal.h
@@ -12,6 +12,13 @@ extern "C" {
 #include "notcurses/notcurses.h"
 #include "notcurses/direct.h"
 
+#ifndef __MINGW64__
+#define API __attribute__((visibility("default")))
+#else
+#define API __declspec(dllexport)
+#endif
+#define ALLOC __attribute__((malloc)) __attribute__((warn_unused_result))
+
 // KEY_EVENT is defined by both ncurses.h and wincon.h. since we don't use
 // either definition, kill it before inclusion of ncurses.h.
 #undef KEY_EVENT
@@ -1784,6 +1791,9 @@ emit_scrolls(const tinfo* ti, int count, fbuf* f){
 // replace or populate the TERM environment variable with 'termname'
 int putenv_term(const char* termname) __attribute__ ((nonnull (1)));
 
+#undef API
+#undef ALLOC
+
 #ifdef __cplusplus
 }
 #endif