diff --git a/configure-data.tcl b/configure-data.tcl
index 5c0ee2e..ebca78e 100644
--- a/configure-data.tcl
+++ b/configure-data.tcl
@@ -372,9 +372,10 @@ proc postprocess {} {
 				if { $er } {
 					error "You must have OpenSSL installed from 'brew' tool. The standard Mac version is inappropriate."
 				}
+				set prefix [exec brew --prefix openssl]
 
-				lappend ::cmakeopt "-DOPENSSL_INCLUDE_DIR=/usr/local/opt/openssl/include"
-				lappend ::cmakeopt "-DOPENSSL_LIBRARIES=/usr/local/opt/openssl/lib/libcrypto.a"
+				lappend ::cmakeopt "-DOPENSSL_INCLUDE_DIR=$prefix/include"
+				lappend ::cmakeopt "-DOPENSSL_LIBRARIES=$prefix/lib/libcrypto.a"
 			}
 		}
 	}