diff --git a/pseudoramiX/pseudoramiX.c b/pseudoramiX/pseudoramiX.c
index 23dbc7328..f47c7836d 100644
--- a/pseudoramiX/pseudoramiX.c
+++ b/pseudoramiX/pseudoramiX.c
@@ -98,6 +98,10 @@ static int pseudoramiXScreensAllocated = 0;
 static int pseudoramiXNumScreens = 0;
 static unsigned long pseudoramiXGeneration = 0;
 
+static void
+PseudoramiXTrace(const char *format, ...)
+    _X_ATTRIBUTE_PRINTF(1, 2);
+
 static void
 PseudoramiXTrace(const char *format, ...)
 {
@@ -108,6 +112,10 @@ PseudoramiXTrace(const char *format, ...)
     va_end(ap);
 }
 
+static void
+PseudoramiXDebug(const char *format, ...)
+    _X_ATTRIBUTE_PRINTF(1, 2);
+
 static void
 PseudoramiXDebug(const char *format, ...)
 {