diff --git a/cmake/BuildPackages.cmake b/cmake/BuildPackages.cmake
index 33043a3..23cb054 100644
--- a/cmake/BuildPackages.cmake
+++ b/cmake/BuildPackages.cmake
@@ -29,7 +29,7 @@
 configure_file(release/tigervnc.iss.in release/tigervnc.iss)
 
 add_custom_target(installer
-  iscc -o. ${INST_DEFS} -DBUILD_DIR= -F${INST_NAME} release/tigervnc.iss
+  iscc -o. ${INST_DEFS} -F${INST_NAME} release/tigervnc.iss
   DEPENDS ${INST_DEPS}
   SOURCES release/tigervnc.iss)
 
diff --git a/release/tigervnc.iss.in b/release/tigervnc.iss.in
index 71632b1..21cea32 100644
--- a/release/tigervnc.iss.in
+++ b/release/tigervnc.iss.in
@@ -20,11 +20,11 @@
 
 [Files]
 #ifdef BUILD_WINVNC
-Source: "@CMAKE_CURRENT_BINARY_DIR@\win\winvnc\{#BUILD_DIR}winvnc4.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
-Source: "@CMAKE_CURRENT_BINARY_DIR@\win\winvnc\{#BUILD_DIR}wm_hooks.dll"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
-Source: "@CMAKE_CURRENT_BINARY_DIR@\win\vncconfig\{#BUILD_DIR}vncconfig.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
+Source: "@CMAKE_CURRENT_BINARY_DIR@\win\winvnc\winvnc4.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
+Source: "@CMAKE_CURRENT_BINARY_DIR@\win\winvnc\wm_hooks.dll"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
+Source: "@CMAKE_CURRENT_BINARY_DIR@\win\vncconfig\vncconfig.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
 #endif
-Source: "@CMAKE_CURRENT_BINARY_DIR@\vncviewer\{#BUILD_DIR}vncviewer.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
+Source: "@CMAKE_CURRENT_BINARY_DIR@\vncviewer\vncviewer.exe"; DestDir: "{app}"; Flags: ignoreversion restartreplace; 
 Source: "@CMAKE_SOURCE_DIR@\README.txt"; DestDir: "{app}"; Flags: ignoreversion
 Source: "@CMAKE_SOURCE_DIR@\LICENCE.TXT"; DestDir: "{app}"; Flags: ignoreversion