diff --git a/include/portaudio.h b/include/portaudio.h
index 8a94aaf..738080d 100644
--- a/include/portaudio.h
+++ b/include/portaudio.h
@@ -111,7 +111,7 @@ typedef struct PaVersionInfo {
  @see PaVersionInfo, paMakeVersionNumber
  @version Available as of 19.5.0.
 */
-const PaVersionInfo* Pa_GetVersionInfo();
+const PaVersionInfo* Pa_GetVersionInfo( void );
 
 
 /** Error codes returned by PortAudio functions.
diff --git a/src/common/pa_front.c b/src/common/pa_front.c
index 188cee9..9d30f48 100644
--- a/src/common/pa_front.c
+++ b/src/common/pa_front.c
@@ -130,7 +130,7 @@ static PaVersionInfo versionInfo_ = {
     /*.versionText =*/ PA_VERSION_TEXT_
 };
 
-const PaVersionInfo* Pa_GetVersionInfo()
+const PaVersionInfo* Pa_GetVersionInfo( void )
 {
     return &versionInfo_;
 }