diff --git a/lib/std/math/ln.zig b/lib/std/math/ln.zig
index f9bf03f83d..da3e60202d 100644
--- a/lib/std/math/ln.zig
+++ b/lib/std/math/ln.zig
@@ -21,7 +21,7 @@ pub fn ln(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
     switch (@typeId(T)) {
         TypeId.ComptimeFloat => {
-            return @TypeOf(1.0)(ln_64(x));
+            return @as(comptime_float, ln_64(x));
         },
         TypeId.Float => {
             return switch (T) {
@@ -31,7 +31,7 @@ pub fn ln(x: var) @TypeOf(x) {
             };
         },
         TypeId.ComptimeInt => {
-            return @TypeOf(1)(math.floor(ln_64(@as(f64, x))));
+            return @as(comptime_int, math.floor(ln_64(@as(f64, x))));
         },
         TypeId.Int => {
             return @as(T, math.floor(ln_64(@as(f64, x))));
diff --git a/lib/std/math/log.zig b/lib/std/math/log.zig
index 1302b564b6..9d77397e17 100644
--- a/lib/std/math/log.zig
+++ b/lib/std/math/log.zig
@@ -23,10 +23,10 @@ pub fn log(comptime T: type, base: T, x: T) T {
     const float_base = math.lossyCast(f64, base);
     switch (@typeId(T)) {
         TypeId.ComptimeFloat => {
-            return @TypeOf(1.0)(math.ln(@as(f64, x)) / math.ln(float_base));
+            return @as(comptime_float, math.ln(@as(f64, x)) / math.ln(float_base));
         },
         TypeId.ComptimeInt => {
-            return @TypeOf(1)(math.floor(math.ln(@as(f64, x)) / math.ln(float_base)));
+            return @as(comptime_int, math.floor(math.ln(@as(f64, x)) / math.ln(float_base)));
         },
         builtin.TypeId.Int => {
             // TODO implement integer log without using float math
diff --git a/lib/std/math/log10.zig b/lib/std/math/log10.zig
index 873b33bdbe..a0deee69d1 100644
--- a/lib/std/math/log10.zig
+++ b/lib/std/math/log10.zig
@@ -22,7 +22,7 @@ pub fn log10(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
     switch (@typeId(T)) {
         TypeId.ComptimeFloat => {
-            return @TypeOf(1.0)(log10_64(x));
+            return @as(comptime_float, log10_64(x));
         },
         TypeId.Float => {
             return switch (T) {
@@ -32,7 +32,7 @@ pub fn log10(x: var) @TypeOf(x) {
             };
         },
         TypeId.ComptimeInt => {
-            return @TypeOf(1)(math.floor(log10_64(@as(f64, x))));
+            return @as(comptime_int, math.floor(log10_64(@as(f64, x))));
         },
         TypeId.Int => {
             return @floatToInt(T, math.floor(log10_64(@intToFloat(f64, x))));
diff --git a/lib/std/math/log2.zig b/lib/std/math/log2.zig
index bf052db59b..d3b655a56a 100644
--- a/lib/std/math/log2.zig
+++ b/lib/std/math/log2.zig
@@ -22,7 +22,7 @@ pub fn log2(x: var) @TypeOf(x) {
     const T = @TypeOf(x);
     switch (@typeId(T)) {
         TypeId.ComptimeFloat => {
-            return @TypeOf(1.0)(log2_64(x));
+            return @as(comptime_float, log2_64(x));
         },
         TypeId.Float => {
             return switch (T) {