diff --git a/backend/raster.c b/backend/raster.c
index 1cb35e09..80127e1c 100644
--- a/backend/raster.c
+++ b/backend/raster.c
@@ -477,7 +477,7 @@ static void draw_string(char *pixbuf, unsigned char input_string[], int xposn, i
     if (textflags & UPCEAN_TEXT) { /* Needs to be before SMALL_TEXT check */
         /* No bold for UPCEAN */
         letter_width = textflags & SMALL_TEXT ? UPCEAN_SMALL_FONT_WIDTH : UPCEAN_FONT_WIDTH;
-        letter_gap = 5;
+        letter_gap = 4;
     } else if (textflags & SMALL_TEXT) { // small font 5x9
         /* No bold for small */
         letter_width = SMALL_FONT_WIDTH;
diff --git a/backend/tests/data/png/ean13_2addon_ggs_5.2.2.5.1-2.png b/backend/tests/data/png/ean13_2addon_ggs_5.2.2.5.1-2.png
index 171504c5..b9493972 100644
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diff --git a/backend/tests/data/png/ean13_5addon_ggs_5.2.2.5.2-2.png b/backend/tests/data/png/ean13_5addon_ggs_5.2.2.5.2-2.png
index e1925c96..aebf10aa 100644
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diff --git a/backend/tests/data/png/ean2.png b/backend/tests/data/png/ean2.png
index dc530243..2a2602a5 100644
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diff --git a/backend/tests/data/png/ean5.png b/backend/tests/data/png/ean5.png
index 1b1316b6..3d6ef02a 100644
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diff --git a/backend/tests/data/png/ean8_2addon.png b/backend/tests/data/png/ean8_2addon.png
index 0e130246..18e27169 100644
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diff --git a/backend/tests/data/png/ean8_5addon.png b/backend/tests/data/png/ean8_5addon.png
index 1ef86bc4..691bc26d 100644
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diff --git a/backend/tests/data/png/upca_2addon_ggs_5.2.6.6-5.png b/backend/tests/data/png/upca_2addon_ggs_5.2.6.6-5.png
index de571a36..6a2373c9 100644
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diff --git a/backend/tests/data/png/upca_5addon.png b/backend/tests/data/png/upca_5addon.png
index b2e69a0f..391aee92 100644
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diff --git a/backend/tests/data/png/upce_2addon.png b/backend/tests/data/png/upce_2addon.png
index 4f156427..0dba7cb9 100644
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diff --git a/backend/tests/data/png/upce_5addon.png b/backend/tests/data/png/upce_5addon.png
index 72dac18c..9ecbcebf 100644
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