diff --git a/src/MagnumPlugins/MagnumFont/CMakeLists.txt b/src/MagnumPlugins/MagnumFont/CMakeLists.txt
index 2a7c254de..fb699f133 100644
--- a/src/MagnumPlugins/MagnumFont/CMakeLists.txt
+++ b/src/MagnumPlugins/MagnumFont/CMakeLists.txt
@@ -73,7 +73,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/MagnumFont)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(MagnumFont INTERFACE importStaticPlugin.cpp)
+        target_sources(MagnumFont INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()
 
diff --git a/src/MagnumPlugins/MagnumFontConverter/CMakeLists.txt b/src/MagnumPlugins/MagnumFontConverter/CMakeLists.txt
index 8536072dc..040c385d1 100644
--- a/src/MagnumPlugins/MagnumFontConverter/CMakeLists.txt
+++ b/src/MagnumPlugins/MagnumFontConverter/CMakeLists.txt
@@ -73,7 +73,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/MagnumFontConverter)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(MagnumFontConverter INTERFACE importStaticPlugin.cpp)
+        target_sources(MagnumFontConverter INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()
 
diff --git a/src/MagnumPlugins/ObjImporter/CMakeLists.txt b/src/MagnumPlugins/ObjImporter/CMakeLists.txt
index a9a275618..5f9340fea 100644
--- a/src/MagnumPlugins/ObjImporter/CMakeLists.txt
+++ b/src/MagnumPlugins/ObjImporter/CMakeLists.txt
@@ -68,7 +68,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/ObjImporter)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(ObjImporter INTERFACE importStaticPlugin.cpp)
+        target_sources(ObjImporter INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()
 
diff --git a/src/MagnumPlugins/TgaImageConverter/CMakeLists.txt b/src/MagnumPlugins/TgaImageConverter/CMakeLists.txt
index 49c6b6c28..e14f453ab 100644
--- a/src/MagnumPlugins/TgaImageConverter/CMakeLists.txt
+++ b/src/MagnumPlugins/TgaImageConverter/CMakeLists.txt
@@ -68,7 +68,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/TgaImageConverter)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(TgaImageConverter INTERFACE importStaticPlugin.cpp)
+        target_sources(TgaImageConverter INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()
 
diff --git a/src/MagnumPlugins/TgaImporter/CMakeLists.txt b/src/MagnumPlugins/TgaImporter/CMakeLists.txt
index 8494023ca..9f9092f23 100644
--- a/src/MagnumPlugins/TgaImporter/CMakeLists.txt
+++ b/src/MagnumPlugins/TgaImporter/CMakeLists.txt
@@ -72,7 +72,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/TgaImporter)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(TgaImporter INTERFACE importStaticPlugin.cpp)
+        target_sources(TgaImporter INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()
 
diff --git a/src/MagnumPlugins/WavAudioImporter/CMakeLists.txt b/src/MagnumPlugins/WavAudioImporter/CMakeLists.txt
index 2f2038fb9..d4d8ece1b 100644
--- a/src/MagnumPlugins/WavAudioImporter/CMakeLists.txt
+++ b/src/MagnumPlugins/WavAudioImporter/CMakeLists.txt
@@ -75,7 +75,7 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/configure.h DESTINATION ${MAGNUM_PLUGI
 if(BUILD_PLUGINS_STATIC)
     install(FILES importStaticPlugin.cpp DESTINATION ${MAGNUM_PLUGINS_INCLUDE_INSTALL_DIR}/WavAudioImporter)
     if(NOT CMAKE_VERSION VERSION_LESS 3.1)
-        target_sources(WavAudioImporter INTERFACE importStaticPlugin.cpp)
+        target_sources(WavAudioImporter INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/importStaticPlugin.cpp)
     endif()
 endif()