diff --git a/configure.ac b/configure.ac
index c47571d73..d4ad33f4e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -89,7 +89,7 @@ else
    ASN1_COMPILE_DEP=
    SLC_DEP=
 
-   ac_cv_prog_compile_et=${with_cross_tools}compile_et
+   ac_cv_prog_COMPILE_ET=${with_cross_tools}compile_et
 
 fi