diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 70890c5fc..40503f8e9 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -286,16 +286,19 @@ if( NO_FMOD )
 endif( NO_FMOD )
 if( NO_OPENAL )
 	add_definitions( -DNO_OPENAL=1 )
+
+	set(MPG123_FOUND NO)
+	set(SNDFILE_FOUND NO)
+else( NO_OPENAL )
+	# Search for libSndFile
+
+	find_package( SndFile )
+
+	# Search for libmpg123
+
+	find_package( MPG123 )
 endif( NO_OPENAL )
 
-# Search for libSndFile
-
-find_package( SndFile )
-
-# Search for libmpg123
-
-find_package( MPG123 )
-
 # Search for FluidSynth
 
 find_package( FluidSynth )