diff --git a/src/Makefile b/src/Makefile
index 88570d405..3a90dd92a 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -385,7 +385,7 @@ endif
 
 # Define include paths for required headers
 # NOTE: Several external required libraries (stb and others)
-INCLUDE_PATHS = -I. -Iexternal -Iexternal/glfw/include -Iexternal/glfw/deps/mingw
+INCLUDE_PATHS = -I. -Iexternal/glfw/include -Iexternal/glfw/deps/mingw
 
 ifeq ($(PLATFORM),PLATFORM_DESKTOP)
     ifeq ($(PLATFORM_OS),BSD)
diff --git a/src/core.c b/src/core.c
index 5e46d2c61..8ccc1e083 100644
--- a/src/core.c
+++ b/src/core.c
@@ -121,11 +121,6 @@
 
 #include "utils.h"                  // Required for: TRACELOG() macros
 
-#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L
-    #undef _POSIX_C_SOURCE
-    #define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
-#endif
-
 #define RLGL_IMPLEMENTATION
 #include "rlgl.h"                   // OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
 
@@ -159,6 +154,11 @@
     #include "external/sdefl.h"     // Deflate (RFC 1951) compressor
 #endif
 
+#if (defined(__linux__) || defined(PLATFORM_WEB)) && _POSIX_C_SOURCE < 199309L
+    #undef _POSIX_C_SOURCE
+    #define _POSIX_C_SOURCE 199309L // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
+#endif
+
 #include <stdlib.h>                 // Required for: srand(), rand(), atexit()
 #include <stdio.h>                  // Required for: sprintf() [Used in OpenURL()]
 #include <string.h>                 // Required for: strrchr(), strcmp(), strlen()