diff --git a/source/amx/amxargs.c b/source/amx/amxargs.c
index 2a99062..88ca3f1 100644
--- a/source/amx/amxargs.c
+++ b/source/amx/amxargs.c
@@ -38,8 +38,7 @@
 #endif
 #if defined __WIN32__ || defined _Windows
   #include <windows.h>
-#endif
-#if defined __GNUC__ || defined __clang__
+#elif defined __GNUC__ || defined __clang__
   #include <unistd.h>
 #endif
 #include "amx.h"
diff --git a/source/amx/amxfile.c b/source/amx/amxfile.c
index d356a5d..fe35b52 100644
--- a/source/amx/amxfile.c
+++ b/source/amx/amxfile.c
@@ -60,12 +60,11 @@
 #else
   #include <io.h>
 #endif
-#if defined __GNUC__ || defined __clang__
-  #include <unistd.h>
-#endif
 #include "amx.h"
 #if defined __WIN32__ || defined _Windows
   #include <windows.h>
+#elif defined __GNUC__ || defined __clang__
+  #include <unistd.h>
 #endif
 
 #include "fpattern.c"
diff --git a/source/amx/amxtime.c b/source/amx/amxtime.c
index 81c5a32..071e129 100644
--- a/source/amx/amxtime.c
+++ b/source/amx/amxtime.c
@@ -23,8 +23,7 @@
 #if defined __WIN32__ || defined _WIN32 || defined _Windows
   #include <windows.h>
   #include <mmsystem.h>
-#endif
-#if defined __GNUC__ || defined __clang__
+#elif defined __GNUC__ || defined __clang__
   #include <sys/time.h>
 #endif