diff --git a/src/engine/safeReader.cpp b/src/engine/safeReader.cpp
index eb9f63ae1..36d6097d6 100644
--- a/src/engine/safeReader.cpp
+++ b/src/engine/safeReader.cpp
@@ -202,7 +202,3 @@ String SafeReader::readStringToken(unsigned char delim) {
 String SafeReader::readStringToken() {
   return readStringToken(' ');
 }
-
-inline bool SafeReader::isEOF() {
-  return curSeek >= len;
-}
\ No newline at end of file
diff --git a/src/engine/safeReader.h b/src/engine/safeReader.h
index e95c90a01..e21311f98 100644
--- a/src/engine/safeReader.h
+++ b/src/engine/safeReader.h
@@ -69,7 +69,7 @@ class SafeReader {
     String readStringLine();
     String readStringToken(unsigned char delim);
     String readStringToken();
-    bool isEOF();
+    inline bool isEOF() { return curSeek >= len; };
 
     SafeReader(void* b, size_t l):
       buf((unsigned char*)b),