diff --git a/pkg/win32/installer.iss.in b/pkg/win32/installer.iss.in
index 251d5c03c..a06ef21ee 100644
--- a/pkg/win32/installer.iss.in
+++ b/pkg/win32/installer.iss.in
@@ -10,7 +10,7 @@
 #define MyAppInvalidPath "Please provide a valid path."
 #define MyAppErrorMsgIsWin32 "You already have a 32 bit installation of pgAdmin 4. Please uninstall this before installing the 64 bit version."
 #define MyAppErrorMsgIsWin64 "You already have a 64 bit installation of pgAdmin 4. Please uninstall this before installing the 32 bit version."
-#define MinimumWindowsVer 6.2.9200
+#define MinimumWindowsVer "6.2.9200"
 
 [Setup]
 AppId={#MyAppName}{#MyAppVersion}