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-rw-r--r--lib/libpam.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libpam.c b/lib/libpam.c
index 549f4c55..c99ebd54 100644
--- a/lib/libpam.c
+++ b/lib/libpam.c
@@ -1291,7 +1291,7 @@ pnm_addopacityrow(const struct pam * const pamP,
 
 void
 pnm_getopacity(const struct pam * const pamP,
-               bool *             const haveOpacityP,
+               int *              const haveOpacityP,
                unsigned int *     const opacityPlaneP) {
 
     /* Usage note: this is obsolete since we added 'have_opacity', etc.