diff --git a/build/find_curl.m4 b/build/find_curl.m4
index 3310e404..d868a30f 100644
--- a/build/find_curl.m4
+++ b/build/find_curl.m4
@@ -54,7 +54,7 @@ if test -n "${curl_path}"; then
         CURL_CONFIG="${curl_path}/${CURL_CONFIG}"
     fi
     AC_MSG_RESULT([${CURL_CONFIG}])
-    CURL_VERSION=`${CURL_CONFIG} --version | sed 's/^[[^0-9]][[^[:space:]]][[^[:space:]]]*[[[:space:]]]*//'`
+    CURL_VERSION=`${CURL_CONFIG} --version | sed 's/^[[^0-9]][[^[:space:]]][[^[:space:]]]*[[[:space:]]]*//' | tr '\r\n' ' '`
     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(curl VERSION: $CURL_VERSION); fi
     CURL_CFLAGS="`${CURL_CONFIG} --cflags`"
     if test "$verbose_output" -eq 1; then AC_MSG_NOTICE(curl CFLAGS: $CURL_CFLAGS); fi