diff --git a/configure b/configure
index 7002d3d1bbf..8621fbed101 100755
--- a/configure
+++ b/configure
@@ -4518,7 +4518,7 @@ if [ "${CFG_AVX2}" = "auto" ]; then
 fi
 
 # detect avx512 support
-if [ "${CFG_AVX512}" == "auto" ]; then
+if [ "${CFG_AVX512}" = "auto" ]; then
     # First, test for AVX-512 Foundation
     if compileTest common/avx512 "avx512f" AVX512=F; then
         # Test for the sub-features