diff --git a/inc/openglshader.h b/inc/openglshader.h
index 525b5c6..33f94fd 100644
--- a/inc/openglshader.h
+++ b/inc/openglshader.h
@@ -84,7 +84,7 @@ static char PASSTHROUGH_FRAG_SHADER[] =
     "}\n";
 
 
-static char RBG555_FRAG_SHADER[] =
+static char RGB555_FRAG_SHADER[] =
     "#version 130\n"
     "out vec4 FragColor;\n"
     "uniform sampler2D Texture;\n"
diff --git a/src/render_ogl.c b/src/render_ogl.c
index 8976833..6d4b0ba 100644
--- a/src/render_ogl.c
+++ b/src/render_ogl.c
@@ -143,7 +143,7 @@ static void ogl_build_programs()
         }
         else if (g_ddraw->bpp == 16 && g_ddraw->rgb555)
         {
-            g_ogl.main_program = oglu_build_program(PASSTHROUGH_VERT_SHADER, RBG555_FRAG_SHADER, core_profile);
+            g_ogl.main_program = oglu_build_program(PASSTHROUGH_VERT_SHADER, RGB555_FRAG_SHADER, core_profile);
         }
         else if (g_ddraw->bpp == 16 || g_ddraw->bpp == 32)
         {