diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 48c28d45ca2..cdf35b46369 100644
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -32,6 +32,7 @@
 #include "shader/prog_instruction.h"
 #include "shader/prog_print.h"
 #include "shader/prog_statevars.h"
+#include "shader/programopt.h"
 #include "texenvprogram.h"
 
 /**