diff --git a/completion/CMakeLists.txt b/completion/CMakeLists.txt
index 0be7479..840daa1 100644
--- a/completion/CMakeLists.txt
+++ b/completion/CMakeLists.txt
@@ -1,32 +1,34 @@
-add_subdirectory(tests)
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
 
 set(completion_SRCS
     worker.cpp
     item.cpp
     implementationitem.cpp
     includefileitem.cpp
     keyworditem.cpp
     context.cpp
     model.cpp
     helpers.cpp
     codemodelitem.cpp
 )
 ecm_qt_declare_logging_category(completion_SRCS
     HEADER completiondebug.h
     IDENTIFIER COMPLETION
     CATEGORY_NAME "kdevelop.languages.php.completion"
 )
 
 add_library( kdevphpcompletion SHARED ${completion_SRCS} )
 generate_export_header( kdevphpcompletion EXPORT_MACRO_NAME KDEVPHPCOMPLETION_EXPORT
                                            EXPORT_FILE_NAME phpcompletionexport.h)
 
 target_link_libraries(kdevphpcompletion LINK_PRIVATE
     KDev::Language
     KDev::Interfaces
     KDev::Project
     kdevphpduchain
     kdevphpparser
 )
 
 install(TARGETS kdevphpcompletion DESTINATION ${INSTALL_TARGETS_DEFAULT_ARGS})
diff --git a/duchain/CMakeLists.txt b/duchain/CMakeLists.txt
index fe0a2ba..3cc5ff5 100644
--- a/duchain/CMakeLists.txt
+++ b/duchain/CMakeLists.txt
@@ -1,54 +1,56 @@
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
-add_subdirectory(tests)
+if (BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
 
 set(duchain_SRCS
     types/indexedcontainer.cpp
     types/integraltypeextended.cpp
     types/structuretype.cpp
     builders/predeclarationbuilder.cpp
     builders/declarationbuilder.cpp
     builders/contextbuilder.cpp
     builders/usebuilder.cpp
     builders/typebuilder.cpp
     editorintegrator.cpp
     dumptypes.cpp
     expressionvisitor.cpp
     expressionparser.cpp
     expressionevaluationresult.cpp
     helper.cpp
     phpducontext.cpp
     declarations/variabledeclaration.cpp
     declarations/classmethoddeclaration.cpp
     declarations/classdeclaration.cpp
     declarations/functiondeclaration.cpp
     declarations/namespacedeclaration.cpp
     declarations/namespacealiasdeclaration.cpp
     declarations/traitmethodaliasdeclaration.cpp
     declarations/traitmemberaliasdeclaration.cpp
     navigation/navigationwidget.cpp
     navigation/declarationnavigationcontext.cpp
     navigation/includenavigationcontext.cpp
     navigation/magicconstantnavigationcontext.cpp
     completioncodemodel.cpp
 )
 ecm_qt_declare_logging_category(duchain_SRCS
     HEADER duchaindebug.h
     IDENTIFIER DUCHAIN
     CATEGORY_NAME "kdevelop.languages.php.duchain"
 )
 
 add_library( kdevphpduchain SHARED ${duchain_SRCS} )
 
 generate_export_header(kdevphpduchain EXPORT_MACRO_NAME KDEVPHPDUCHAIN_EXPORT
                                        EXPORT_FILE_NAME phpduchainexport.h)
 
 target_link_libraries(kdevphpduchain LINK_PRIVATE
     KDev::Interfaces
     KDev::Language
     KDev::Shell
     KDev::Project
     kdevphpparser
 )
 
 install(TARGETS kdevphpduchain DESTINATION ${INSTALL_TARGETS_DEFAULT_ARGS})
 
diff --git a/parser/CMakeLists.txt b/parser/CMakeLists.txt
index 25bc491..55260a8 100644
--- a/parser/CMakeLists.txt
+++ b/parser/CMakeLists.txt
@@ -1,41 +1,43 @@
-add_subdirectory(test)
+if (BUILD_TESTING)
+    add_subdirectory(test)
+endif()
 
 set(parser_STAT_SRCS
     phplexer.cpp
     parsesession.cpp
 )
 
 kdevpgqt_generate(parser_SRCS php NAMESPACE Php DEBUG_VISITOR TOKEN_TEXT
     "${php_SOURCE_DIR}/parser/php.g"
     "${php_SOURCE_DIR}/parser/phplexer.h"
 )
 ecm_qt_declare_logging_category(parser_SRCS
     HEADER parserdebug.h
     IDENTIFIER PARSER
     CATEGORY_NAME "kdevelop.languages.php.parser"
 )
 
 add_library(kdevphpparser SHARED ${parser_SRCS} ${parser_STAT_SRCS})
 
 generate_export_header(kdevphpparser EXPORT_MACRO_NAME KDEVPHPPARSER_EXPORT
                                       EXPORT_FILE_NAME parserexport.h)
 target_link_libraries(kdevphpparser LINK_PRIVATE
     KDev::Language
     KF5::I18n
 )
 
 add_executable(php-parser main.cpp)
 
 # hack to make phpdebugvisitor.h (generated at compile time)
 # use the correct EXPORT tags when compiling in MinGW
 if (MINGW)
     add_definitions(-DMAKE_KDEV4PHPPARSER_LIB)
 endif (MINGW)
 
 target_link_libraries(php-parser
     KDev::Tests
     KDev::Language
     kdevphpparser
 )
 
 install(TARGETS kdevphpparser DESTINATION ${INSTALL_TARGETS_DEFAULT_ARGS})