diff --git a/README.md b/README.md
index c8c5008..1354418 100644
--- a/README.md
+++ b/README.md
@@ -277,7 +277,7 @@ The following configuration settings may be applied (a `Y` in column `$` means a
 | `OTR_LUASCRIPT`       |       |               | Path to the Lua script
 | `OTR_PRECISION`       |       | `7`           | Reverse-geo precision
 | `OTR_GEOKEY`          |       |               | API key for reverse-geo lookups
-| `OTR_BROWSERAPIKEY`   |       |               | Google maps browser API key
+| `OTR_BROWSERAPIKEY`   |  Y    |               | Google maps browser API key
 | `OTR_TOPICS`          |       |               | String containing a space-separated list of topics to subscribe to for MQTT (overridden by command-line arguments)
 | `OTR_CAFILE`          |  Y    |               | Path to PEM-encoded CA certificate file for MQTT (implicitly enables TLS)
 
diff --git a/recorder.c b/recorder.c
index c6564a1..59ed26f 100644
--- a/recorder.c
+++ b/recorder.c
@@ -1278,6 +1278,11 @@ int main(int argc, char **argv)
 	}
 
 #endif
+	if ((p = getenv("OTR_BROWSERAPIKEY")) != NULL) {
+		if (ud->browser_apikey)
+			free(ud->browser_apikey);
+		ud->browser_apikey = strdup(p);
+	}
 
 	while (1) {
 		static struct option long_options[] = {