diff --git a/src/mesa/state_tracker/st_program.c b/src/mesa/state_tracker/st_program.c
index f34c0e59a36..74cd9fa628a 100644
--- a/src/mesa/state_tracker/st_program.c
+++ b/src/mesa/state_tracker/st_program.c
@@ -1126,7 +1126,7 @@ st_get_fp_variant(struct st_context *st,
                           key->fog ? "fog," : "",
                           key->lower_two_sided_color ? "twoside," : "",
                           key->lower_flatshade ? "flatshade," : "",
-                          key->lower_alpha_func ? "alpha_compare," : "",
+                          key->lower_alpha_func != COMPARE_FUNC_ALWAYS ? "alpha_compare," : "",
                           /* skipped ATI_fs targets */
                           fp->ExternalSamplersUsed ? "external?," : "",
                           key->gl_clamp[0] || key->gl_clamp[1] || key->gl_clamp[2] ? "GL_CLAMP," : "",