diff --git a/build/cmake/build_ocean_android.bat b/build/cmake/build_ocean_android.bat
index c30ff14a..faea01f0 100644
--- a/build/cmake/build_ocean_android.bat
+++ b/build/cmake/build_ocean_android.bat
@@ -141,10 +141,13 @@ for %%a in (!-android_abi!) do (
         exit /b
       )
 
-      set BUILD_DIRECTORY=!-build!\!bibase!
-      set INSTALL_DIRECTORY=!-install!\!bibase!
+      call :normalize_path !-build!
+      set BUILD_DIRECTORY=!NORMEDPATH!\!bibase!
+      call :normalize_path !-install!
+      set INSTALL_DIRECTORY=!NORMEDPATH!\!bibase!
 
-      set TPFWD=!-third-party:\=/!
+      call :normalize_path !-third-party!
+      set TPFWD=!NORMEDPATH:\=/!
       set TPDIR=!TPFWD!/!bibase!
       set TPSPEC=-DCMAKE_PREFIX_PATH="!TPDIR!" -DCMAKE_MODULE_PATH="!TPDIR!" -DCMAKE_FIND_ROOT_PATH="!TPDIR!"
 
@@ -202,3 +205,7 @@ if %errorlevel% neq 0 (
 ) else (
     exit /b 0
 )
+
+:normalize_path
+set NORMEDPATH=%~f1
+exit /b
diff --git a/build/cmake/build_ocean_windows.bat b/build/cmake/build_ocean_windows.bat
index 97bfcd92..3ce3435c 100644
--- a/build/cmake/build_ocean_windows.bat
+++ b/build/cmake/build_ocean_windows.bat
@@ -112,7 +112,8 @@ for %%c in (!-config!) do (
 
     set TPSPEC=
     if NOT !-third-party! == NULL (
-        set TPDIR=!-third-party!\!bibase!
+	call :normalize_path !-third-party!
+        set TPDIR=!NORMEDPATH!\!bibase!
         set TPSPEC="-DCMAKE_PREFIX_PATH=!TPDIR!"
     )
 
@@ -153,3 +154,8 @@ if %errorlevel% neq 0 (
 ) else (
     exit /b 0
 )
+
+:normalize_path
+set NORMEDPATH=%~f1
+exit /b
+
diff --git a/build/cmake/build_thirdparty_android.bat b/build/cmake/build_thirdparty_android.bat
index b5d539e3..da07ed99 100644
--- a/build/cmake/build_thirdparty_android.bat
+++ b/build/cmake/build_thirdparty_android.bat
@@ -128,8 +128,10 @@ for %%a in (!-android_abi!) do (
         exit /b
       )
 
-      set BUILD_DIRECTORY="!-build!\!bibase!"
-      set INSTALL_DIRECTORY=!-install!\!bibase!
+      call :normalize_path !-build!
+      set BUILD_DIRECTORY="!NORMEDPATH!\!bibase!"
+      call :normalize_path !-install!
+      set INSTALL_DIRECTORY=!NORMEDPATH!\!bibase!
 
       echo BUILD_TYPE           !BUILD_TYPE!
       echo BUILD_SHARED_LIBS    !BUILD_SHARED_LIBS!
@@ -182,3 +184,8 @@ if %errorlevel% neq 0 (
 ) else (
     exit /b 0
 )
+
+:normalize_path
+set NORMEDPATH=%~f1
+exit /b
+