diff --git a/c/mapping/mapper_stats1.c b/c/mapping/mapper_stats1.c
index 6f4cfe2ba..5f8cb6c92 100644
--- a/c/mapping/mapper_stats1.c
+++ b/c/mapping/mapper_stats1.c
@@ -110,9 +110,9 @@ static void mapper_stats1_usage(FILE* o, char* argv0, char* verb) {
 	}
 	fprintf(o, "-f {a,b,c}   Value-field names on which to compute statistics\n");
 	fprintf(o, "--fr {regex} Regex for value-field names on which to compute statistics\n");
-	fprintf(o, "             (compute statsitics on values in all field names matching regex)\n");
+	fprintf(o, "             (compute statistics on values in all field names matching regex)\n");
 	fprintf(o, "--fx {regex} Inverted regex for value-field names on which to compute statistics\n");
-	fprintf(o, "             (compute statsitics on values in all field names not matching regex)\n");
+	fprintf(o, "             (compute statistics on values in all field names not matching regex)\n");
 	fprintf(o, "-g {d,e,f}   Optional group-by-field names\n");
 	fprintf(o, "--gr {regex} Regex for optional group-by-field names\n");
 	fprintf(o, "             (group by values in field names matching regex)\n");
diff --git a/doc/manpage.html b/doc/manpage.html
index b2f5e9d05..b96eae774 100644
--- a/doc/manpage.html
+++ b/doc/manpage.html
@@ -1272,9 +1272,9 @@ VERBS
 	  max	    Compute maximum values of specified fields
        -f {a,b,c}   Value-field names on which to compute statistics
        --fr {regex} Regex for value-field names on which to compute statistics
-		    (compute statsitics on values in all field names matching regex)
+		    (compute statistics on values in all field names matching regex)
        --fx {regex} Inverted regex for value-field names on which to compute statistics
-		    (compute statsitics on values in all field names not matching regex)
+		    (compute statistics on values in all field names not matching regex)
        -g {d,e,f}   Optional group-by-field names
        --gr {regex} Regex for optional group-by-field names
 		    (group by values in field names matching regex)
diff --git a/doc/manpage.txt b/doc/manpage.txt
index 5d547519c..1f2a2a2b8 100644
--- a/doc/manpage.txt
+++ b/doc/manpage.txt
@@ -1198,9 +1198,9 @@ VERBS
 	  max	    Compute maximum values of specified fields
        -f {a,b,c}   Value-field names on which to compute statistics
        --fr {regex} Regex for value-field names on which to compute statistics
-		    (compute statsitics on values in all field names matching regex)
+		    (compute statistics on values in all field names matching regex)
        --fx {regex} Inverted regex for value-field names on which to compute statistics
-		    (compute statsitics on values in all field names not matching regex)
+		    (compute statistics on values in all field names not matching regex)
        -g {d,e,f}   Optional group-by-field names
        --gr {regex} Regex for optional group-by-field names
 		    (group by values in field names matching regex)
diff --git a/doc/mlr.1 b/doc/mlr.1
index 56d5d242c..76bf668bc 100644
--- a/doc/mlr.1
+++ b/doc/mlr.1
@@ -1573,9 +1573,9 @@ Options:
    max       Compute maximum values of specified fields
 -f {a,b,c}   Value-field names on which to compute statistics
 --fr {regex} Regex for value-field names on which to compute statistics
-             (compute statsitics on values in all field names matching regex)
+             (compute statistics on values in all field names matching regex)
 --fx {regex} Inverted regex for value-field names on which to compute statistics
-             (compute statsitics on values in all field names not matching regex)
+             (compute statistics on values in all field names not matching regex)
 -g {d,e,f}   Optional group-by-field names
 --gr {regex} Regex for optional group-by-field names
              (group by values in field names matching regex)
diff --git a/doc/reference-verbs.html b/doc/reference-verbs.html
index 2fac96979..d88a6c4b5 100644
--- a/doc/reference-verbs.html
+++ b/doc/reference-verbs.html
@@ -3253,9 +3253,9 @@ Options:
    max       Compute maximum values of specified fields
 -f {a,b,c}   Value-field names on which to compute statistics
 --fr {regex} Regex for value-field names on which to compute statistics
-             (compute statsitics on values in all field names matching regex)
+             (compute statistics on values in all field names matching regex)
 --fx {regex} Inverted regex for value-field names on which to compute statistics
-             (compute statsitics on values in all field names not matching regex)
+             (compute statistics on values in all field names not matching regex)
 -g {d,e,f}   Optional group-by-field names
 --gr {regex} Regex for optional group-by-field names
              (group by values in field names matching regex)