diff --git a/project/common.mk b/project/common.mk
index 1b98bcd..6563de5 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -10,7 +10,6 @@ COMMON_SRCS = \
 	src/headers/pe_get_image_section_tbl_addr.c \
 	src/headers/pe_get_image_special_hdr_addr.c \
 	src/imports/pe_enum_image_import_hdrs.c \
-	src/internal/pe_impl.c \
 	src/internal/pe_entry_point.c \
 	src/meta/pe_get_image_stack_heap_info.c \
 	src/meta/pe_get_symbol_module_info.c \
diff --git a/src/internal/pe_impl.c b/src/internal/pe_impl.c
deleted file mode 100644
index 96780c9..0000000
--- a/src/internal/pe_impl.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/*****************************************************************************/
-/*  pemagination: a (virtual) tour into portable bits and executable bytes   */
-/*  Copyright (C) 2013,2014,2015  Z. Gilboa                                  */
-/*  Released under GPLv2 and GPLv3; see COPYING.PEMAGINE.                    */
-/*****************************************************************************/
-
-#include <psxtypes/psxtypes.h>
-#include <pemagine/pemagine.h>
-#include "pe_impl.h"
-
-int32_t pe_impl_strlen_ansi(const char * str)
-{
-	const char * ch;
-	const char * upper_bound;
-
-	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
-
-	for (ch=str; *ch && ch<upper_bound; )
-		ch++;
-
-	return (ch < upper_bound)
-		? ch - str
-		: -1;
-}
-
-
-int32_t pe_impl_strlen_utf16(const wchar16_t * str)
-{
-	const wchar16_t * wch;
-	const wchar16_t * upper_bound;
-
-	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
-
-	for (wch=str; *wch && wch<upper_bound; )
-		wch++;
-
-	if (wch < upper_bound)
-		return (wch - str) * sizeof(wchar16_t);
-	else
-		return -1;
-}
-
-
-wchar16_t pe_impl_utf16_char_to_lower(const wchar16_t c)
-{
-	return ((c >= 'A') && (c <= 'Z'))
-		? c + 'a' - 'A'
-		: c;
-}
diff --git a/src/internal/pe_impl.h b/src/internal/pe_impl.h
index 43ec6ef..27c156d 100644
--- a/src/internal/pe_impl.h
+++ b/src/internal/pe_impl.h
@@ -1,3 +1,9 @@
+/*****************************************************************************/
+/*  pemagination: a (virtual) tour into portable bits and executable bytes   */
+/*  Copyright (C) 2013,2014,2015  Z. Gilboa                                  */
+/*  Released under GPLv2 and GPLv3; see COPYING.PEMAGINE.                    */
+/*****************************************************************************/
+
 #include <psxtypes/psxtypes.h>
 #include <pemagine/pemagine.h>
 
@@ -12,6 +18,43 @@ struct pe_block {
 	uint32_t	size;
 };
 
-int32_t		pe_impl_strlen_ansi(const char * str);
-int32_t		pe_impl_strlen_utf16(const wchar16_t * str);
-wchar16_t	pe_impl_utf16_char_to_lower(const wchar16_t c);
+
+static inline int32_t pe_impl_strlen_ansi(const char * str)
+{
+	const char * ch;
+	const char * upper_bound;
+
+	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
+
+	for (ch=str; *ch && ch<upper_bound; )
+		ch++;
+
+	return (ch < upper_bound)
+		? ch - str
+		: -1;
+}
+
+
+static inline int32_t pe_impl_strlen_utf16(const wchar16_t * str)
+{
+	const wchar16_t * wch;
+	const wchar16_t * upper_bound;
+
+	upper_bound = str + PE_STR_MAX_SYMBOL_LEN_ALLOWED;
+
+	for (wch=str; *wch && wch<upper_bound; )
+		wch++;
+
+	if (wch < upper_bound)
+		return (wch - str) * sizeof(wchar16_t);
+	else
+		return -1;
+}
+
+
+static inline wchar16_t pe_impl_utf16_char_to_lower(const wchar16_t c)
+{
+	return ((c >= 'A') && (c <= 'Z'))
+		? c + 'a' - 'A'
+		: c;
+}