diff --git a/clientgui/mac/SetupSecurity.cpp b/clientgui/mac/SetupSecurity.cpp
index eb2825c94f..f3e69b6e7a 100644
--- a/clientgui/mac/SetupSecurity.cpp
+++ b/clientgui/mac/SetupSecurity.cpp
@@ -901,7 +901,7 @@ OSStatus DoPrivilegedExec(const char *pathToTool, char *arg1, char *arg2, char *
             args[5] = NULL;
 
             err = AuthorizationExecuteWithPrivileges (gOurAuthRef, pathToTool, 0, args, &ioPipe);
-            if (err = noErr) {
+            if (err == noErr) {
                 if (ioPipe) {
                     // We use the pipe to signal us when the command has completed
                     do {