diff --git a/stb_image.h b/stb_image.h
index 3a8f3b1..21c1e29 100644
--- a/stb_image.h
+++ b/stb_image.h
@@ -461,12 +461,12 @@ STBIDEF stbi_uc *stbi_load_from_file  (FILE *f,                  int *x, int *y,
 #ifndef STBI_NO_HDR
    STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma);
    STBIDEF void   stbi_hdr_to_ldr_scale(float scale);
-#endif
+#endif // STBI_NO_HDR
 
 #ifndef STBI_NO_LINEAR
    STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma);
    STBIDEF void   stbi_ldr_to_hdr_scale(float scale);
-#endif // STBI_NO_HDR
+#endif // STBI_NO_LINEAR
 
 // stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR
 STBIDEF int    stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user);
@@ -1186,14 +1186,15 @@ STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void
    #endif
 }
 
-static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;
+#ifndef STBI_NO_LINEAR
 static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f;
 
-#ifndef STBI_NO_LINEAR
 STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
 STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
 #endif
 
+static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f;
+
 STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
 STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }