diff --git a/lib/libpmc/pmc.atom.3 b/lib/libpmc/pmc.atom.3
index 40263c39ce9..92d9576bb47 100644
--- a/lib/libpmc/pmc.atom.3
+++ b/lib/libpmc/pmc.atom.3
@@ -108,9 +108,6 @@ qualifier.
 .It Li os
 Configure the PMC to count events happening at processor privilege
 level 0.
-.It Li umask= Ns Ar value
-This qualifier is used to further qualify the event selected (see
-below).
 .It Li usr
 Configure the PMC to count events occurring at privilege levels 1, 2
 or 3.
diff --git a/lib/libpmc/pmc.core.3 b/lib/libpmc/pmc.core.3
index 6ae6eec6166..f41a824f5ea 100644
--- a/lib/libpmc/pmc.core.3
+++ b/lib/libpmc/pmc.core.3
@@ -100,9 +100,6 @@ qualifier.
 .It Li os
 Configure the PMC to count events happening at processor privilege
 level 0.
-.It Li umask= Ns Ar value
-This qualifier is used to further qualify the event selected (see
-below).
 .It Li usr
 Configure the PMC to count events occurring at privilege levels 1, 2
 or 3.
diff --git a/lib/libpmc/pmc.core2.3 b/lib/libpmc/pmc.core2.3
index dea2c43946a..b04fa9361de 100644
--- a/lib/libpmc/pmc.core2.3
+++ b/lib/libpmc/pmc.core2.3
@@ -106,9 +106,6 @@ qualifier.
 .It Li os
 Configure the PMC to count events happening at processor privilege
 level 0.
-.It Li umask= Ns Ar value
-This qualifier is used to further qualify the event selected (see
-below).
 .It Li usr
 Configure the PMC to count events occurring at privilege levels 1, 2
 or 3.