diff --git a/include/ptycon/ptycon_api.h b/include/ptycon/ptycon_api.h
index 35ba2a4..e20d1d8 100644
--- a/include/ptycon/ptycon_api.h
+++ b/include/ptycon/ptycon_api.h
@@ -19,9 +19,9 @@
 
 /* ptyc_api */
 #ifndef PTYC_APP
-#if     defined (PTYC_BUILD)
+#if     defined (PTYC_EXPORT)
 #define ptyc_api ptyc_export
-#elif   defined (PTYC_SHARED)
+#elif   defined (PTYC_IMPORT)
 #define ptyc_api ptyc_import
 #elif   defined (PTYC_STATIC)
 #define ptyc_api
diff --git a/project/extras.mk b/project/extras.mk
index 6f23834..25fc706 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -1,4 +1,4 @@
-CFLAGS_SHARED_ATTR	+= -DPTYC_PRE_ALPHA -DPTYC_BUILD
+CFLAGS_SHARED_ATTR	+= -DPTYC_PRE_ALPHA -DPTYC_EXPORT
 CFLAGS_STATIC_ATTR	+= -DPTYC_PRE_ALPHA -DPTYC_STATIC
 CFLAGS_APP_ATTR		+= -DPTYC_APP
 
diff --git a/src/internal/ptycon_nolibc_impl.c b/src/internal/ptycon_nolibc_impl.c
index 8a32fd7..245f157 100644
--- a/src/internal/ptycon_nolibc_impl.c
+++ b/src/internal/ptycon_nolibc_impl.c
@@ -61,7 +61,7 @@ char * ptyc_strrchr(const char * ch, int c)
 	return 0;
 }
 
-#ifdef PTYC_BUILD
+#ifdef PTYC_EXPORT
 int __stdcall ptycon_entry_point(void * hinstance, uint32_t reason, void * reserved)
 {
 	(void)hinstance;