diff --git a/core/src/main/resources/org/teavm/backend/c/definitions.h b/core/src/main/resources/org/teavm/backend/c/definitions.h
index ba20907e5..f3054a078 100644
--- a/core/src/main/resources/org/teavm/backend/c/definitions.h
+++ b/core/src/main/resources/org/teavm/backend/c/definitions.h
@@ -13,7 +13,7 @@
     #pragma warning(disable:4102)
 
     #ifdef WINAPI_FAMILY
-        #if WINAPI_FAMILY == 2 || WINAPI_FAMILY == 3 || WINAPI_FAMILY == 5
+        #if WINAPI_FAMILY == WINAPI_FAMILY_APP || WINAPI_FAMILY == 2 || WINAPI_FAMILY == 3 || WINAPI_FAMILY == 5
             #undef TEAVM_WINDOWS_UWP
             #define TEAVM_WINDOWS_UWP 1
         #endif
diff --git a/core/src/main/resources/org/teavm/backend/c/file.c b/core/src/main/resources/org/teavm/backend/c/file.c
index dad0fbe31..b0e86cd15 100644
--- a/core/src/main/resources/org/teavm/backend/c/file.c
+++ b/core/src/main/resources/org/teavm/backend/c/file.c
@@ -1,8 +1,8 @@
+#include "definitions.h"
 #include "file.h"
 #include "string.h"
 #include "time.h"
 #include "date.h"
-#include "definitions.h"
 #include <stdlib.h>
 #include <errno.h>