diff --git a/index.js b/index.js
index 9bdb70e..f33abb6 100644
--- a/index.js
+++ b/index.js
@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 const debug = require("debug")("ganache");
 
diff --git a/lib/provider.js b/lib/provider.js
index 8014fd3..94ba16c 100644
--- a/lib/provider.js
+++ b/lib/provider.js
@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 let ProviderEngine = require("web3-provider-engine");
 let SubscriptionSubprovider = require("web3-provider-engine/subproviders/subscriptions");
diff --git a/lib/server.js b/lib/server.js
index 83bd172..e50dde1 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 var Provider = require("./provider");
 var webSocketServer = require("./webSocketServer");
diff --git a/public-exports.js b/public-exports.js
index 5b2c85e..e13465b 100644
--- a/public-exports.js
+++ b/public-exports.js
@@ -1,5 +1,7 @@
 // make sourcemaps work!
-require("source-map-support/register");
+if (process.env.NODE_ENV !== "test") {
+  require("source-map-support/register");
+}
 
 const Provider = require("./lib/provider");
 const Server = require("./lib/server");