diff --git a/tools/replace-stdint.sh b/tools/replace-stdint.sh
index 6ef9bb2b..8007f198 100755
--- a/tools/replace-stdint.sh
+++ b/tools/replace-stdint.sh
@@ -11,16 +11,16 @@ SOURCES=($(printf -- '%s\n' "${SOURCES[@]}" | grep -v libc | grep -v "Types.h" |
 
 for f in ${SOURCES[@]}
 do
-    sed -i 's/uint8_t/u8/g' $f
-    sed -i 's/uint16_t/u16/g' $f
-    sed -i 's/uint32_t/u32/g' $f
-    sed -i 's/uint64_t/u64/g' $f
+    sed -i 's/uint8_t /u8 /g' $f
+    sed -i 's/uint16_t /u16 /g' $f
+    sed -i 's/uint32_t /u32 /g' $f
+    sed -i 's/uint64_t /u64 /g' $f
 
-    sed -i 's/int8_t/i8/g' $f
-    sed -i 's/int16_t/i16/g' $f
-    sed -i 's/int32_t/i32/g' $f
-    sed -i 's/int64_t/i64/g' $f
+    sed -i 's/int8_t /i8 /g' $f
+    sed -i 's/int16_t /i16 /g' $f
+    sed -i 's/int32_t /i32 /g' $f
+    sed -i 's/int64_t /i64 /g' $f
 
-    sed -i 's/size_t/usize/g' $f
-    sed -i 's/ssize_t/isize/g' $f
+    sed -i 's/size_t /usize /g' $f
+    sed -i 's/ssize_t /isize /g' $f
 done