diff --git a/mkspecs/android-g++/qmake.conf b/mkspecs/android-g++/qmake.conf
index 44624fcca52..608e64f3d4d 100644
--- a/mkspecs/android-g++/qmake.conf
+++ b/mkspecs/android-g++/qmake.conf
@@ -26,6 +26,7 @@ contains(QMAKE_HOST.os,Windows) {
     } else {
         MINGW_IN_SHELL = 1
         QMAKE_DIR_SEP = /
+        QMAKE_DIRLIST_SEP = :
         # Because install's ability to set permissions is not relevant on Windows,
         # and git's msys does not provide it to start with.
         QMAKE_INSTALL_FILE = cp -f
diff --git a/mkspecs/common/qcc-base-qnx.conf b/mkspecs/common/qcc-base-qnx.conf
index 0954cfd1ee2..a0a88b96054 100644
--- a/mkspecs/common/qcc-base-qnx.conf
+++ b/mkspecs/common/qcc-base-qnx.conf
@@ -57,4 +57,5 @@ QMAKE_STRIPFLAGS_LIB   += --strip-unneeded
 equals(QMAKE_HOST.os, Windows) {
     isEmpty(QMAKE_SH): error("This mkspec requires an MSYS environment.")
     QMAKE_DIR_SEP       = /
+    QMAKE_DIRLIST_SEP   = :
 }
diff --git a/mkspecs/win32-g++/qmake.conf b/mkspecs/win32-g++/qmake.conf
index 1ac35611f54..830dde97e99 100644
--- a/mkspecs/win32-g++/qmake.conf
+++ b/mkspecs/win32-g++/qmake.conf
@@ -93,6 +93,7 @@ QMAKE_LIBS_QT_ENTRY     = -lmingw32 -lqtmain
 !isEmpty(QMAKE_SH) {
     MINGW_IN_SHELL      = 1
     QMAKE_DIR_SEP       = /
+    QMAKE_DIRLIST_SEP   = :
     include(../common/shell-unix.conf)
     # Because install's ability to set permissions is not relevant on Windows,
     # and git's msys does not provide it to start with.