diff --git a/man5/proc.5 b/man5/proc.5
index ef5db91c4..b7a619e79 100644
--- a/man5/proc.5
+++ b/man5/proc.5
@@ -747,7 +747,7 @@ waited-for children have made.
 \fIutime\fP %lu
 Amount of time that this process has been scheduled in user mode,
 measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 This includes guest time, \fIguest_time\fP
 (time spent running a virtual CPU, see below),
 so that applications that are not aware of the guest time field
@@ -756,13 +756,13 @@ do not lose that time from their calculations.
 \fIstime\fP %lu
 Amount of time that this process has been scheduled in kernel mode,
 measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 .TP
 \fIcutime\fP %ld
 Amount of time that this process's
 waited-for children have been scheduled in user mode,
 measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 (See also
 .BR times (2).)
 This includes guest time, \fIcguest_time\fP
@@ -772,7 +772,7 @@ This includes guest time, \fIcguest_time\fP
 Amount of time that this process's
 waited-for children have been scheduled in kernel mode,
 measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 .TP
 \fIpriority\fP %ld
 (Explanation for Linux 2.6)
@@ -930,11 +930,11 @@ Aggregated block I/O delays, measured in clock ticks (centiseconds).
 \fIguest_time\fP %lu (since Linux 2.6.24)
 Guest time of the process (time spent running a virtual CPU
 for a guest operating system), measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 .TP
 \fIcguest_time\fP %ld (since Linux 2.6.24)
 Guest time of the process's children, measured in clock ticks (divide by
-.IR sysconf(_SC_CLK_TCK) .
+.IR sysconf(_SC_CLK_TCK) ).
 .RE
 .TP
 .I /proc/[pid]/statm