diff --git a/libhwcomposer/hwc_uevents.cpp b/libhwcomposer/hwc_uevents.cpp
index 78f6788..398634a 100644
--- a/libhwcomposer/hwc_uevents.cpp
+++ b/libhwcomposer/hwc_uevents.cpp
@@ -38,8 +38,8 @@
     int64_t timestamp = 0;
     const char *str = udata;
 
-    if(!strcasestr(str, "change@/devices/virtual/switch/hdmi") &&
-       !strcasestr(str, "change@/devices/virtual/switch/wfd")) {
+    if(!strcasestr("change@/devices/virtual/switch/hdmi", str) &&
+       !strcasestr("change@/devices/virtual/switch/wfd", str)) {
         ALOGD_IF(UEVENT_DEBUG, "%s: Not Ext Disp Event ", __FUNCTION__);
         return;
     }