diff --git a/src/libsysprof/binfile.c b/src/libsysprof/binfile.c
index 36e7707c..2f108739 100644
--- a/src/libsysprof/binfile.c
+++ b/src/libsysprof/binfile.c
@@ -264,12 +264,8 @@ get_debug_binaries (GList               *files,
     return files;
 }
 
-static char **
-get_lines (const char *format,
-           ...)
-  G_GNUC_PRINTF (1, 2);
-
 #ifdef __linux__
+G_GNUC_PRINTF (1, 2)
 static char **
 get_lines (const char *format,
            ...)