1 files changed, 2 insertions, 0 deletions
diff --git a/src/core.c b/src/core.c
index 45615f83..c578a807 100644
--- a/src/core.c
+++ b/src/core.c
@@ -95,7 +95,9 @@
 #define RAYMATH_IMPLEMENTATION  // Define external out-of-line implementation of raymath here
 #include "raymath.h"            // Required for: Vector3 and Matrix functions
 
+#define RLGL_IMPLEMENTATION
 #include "rlgl.h"               // raylib OpenGL abstraction layer to OpenGL 1.1, 3.3+ or ES2
+
 #include "utils.h"              // Required for: fopen() Android mapping
 
 #if defined(SUPPORT_GESTURES_SYSTEM)